Home / 2,912,759.70-4,369,139.55-1,904,990.10

Finding the Fourth Proportional to 2,912,759.70, 4,369,139.55 and 1,904,990.10

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Solution

The fourth proportional to 2,912,759.70, 4,369,139.55 and 1,904,990.10 is: 2,857,485.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,759.70 : 4,369,139.55 = 1,904,990.10 : x
  2. Step 2: Convert to fraction form
    2,912,759.70/4,369,139.55 = 1,904,990.10/x
  3. Step 3: Cross multiply
    2,912,759.70x = 4,369,139.55 × 1,904,990.10
  4. Step 4: Simplify right side
    2,912,759.70x = 8,323,167,588,268.46
  5. Step 5: Solve for x
    x = 8,323,167,588,268.46/2,912,759.70
  6. Step 6: Final answer
    x = 2,857,485.15

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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.