Home / 738,129.10-1,107,193.65-724,132.30

Finding the Fourth Proportional to 738,129.10, 1,107,193.65 and 724,132.30

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Solution

The fourth proportional to 738,129.10, 1,107,193.65 and 724,132.30 is: 1,086,198.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,129.10 : 1,107,193.65 = 724,132.30 : x
  2. Step 2: Convert to fraction form
    738,129.10/1,107,193.65 = 724,132.30/x
  3. Step 3: Cross multiply
    738,129.10x = 1,107,193.65 × 724,132.30
  4. Step 4: Simplify right side
    738,129.10x = 801,754,684,319.90
  5. Step 5: Solve for x
    x = 801,754,684,319.90/738,129.10
  6. Step 6: Final answer
    x = 1,086,198.45

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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.