Home / 778,051.70-1,167,077.55-486,014.30

Finding the Fourth Proportional to 778,051.70, 1,167,077.55 and 486,014.30

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Solution

The fourth proportional to 778,051.70, 1,167,077.55 and 486,014.30 is: 729,021.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,051.70 : 1,167,077.55 = 486,014.30 : x
  2. Step 2: Convert to fraction form
    778,051.70/1,167,077.55 = 486,014.30/x
  3. Step 3: Cross multiply
    778,051.70x = 1,167,077.55 × 486,014.30
  4. Step 4: Simplify right side
    778,051.70x = 567,216,378,508.97
  5. Step 5: Solve for x
    x = 567,216,378,508.97/778,051.70
  6. Step 6: Final answer
    x = 729,021.45

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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.