Home / 3,128,759.70-4,693,139.55-998,999.70

Finding the Fourth Proportional to 3,128,759.70, 4,693,139.55 and 998,999.70

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Solution

The fourth proportional to 3,128,759.70, 4,693,139.55 and 998,999.70 is: 1,498,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,759.70 : 4,693,139.55 = 998,999.70 : x
  2. Step 2: Convert to fraction form
    3,128,759.70/4,693,139.55 = 998,999.70/x
  3. Step 3: Cross multiply
    3,128,759.70x = 4,693,139.55 × 998,999.70
  4. Step 4: Simplify right side
    3,128,759.70x = 4,688,445,002,508.14
  5. Step 5: Solve for x
    x = 4,688,445,002,508.14/3,128,759.70
  6. Step 6: Final answer
    x = 1,498,499.55

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.