Home / 724,442.20-1,087,700.10-409,514.20

Finding the Fourth Proportional to 724,442.20, 1,087,700.10 and 409,514.20

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Solution

The fourth proportional to 724,442.20, 1,087,700.10 and 409,514.20 is: 614,857.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,442.20 : 1,087,700.10 = 409,514.20 : x
  2. Step 2: Convert to fraction form
    724,442.20/1,087,700.10 = 409,514.20/x
  3. Step 3: Cross multiply
    724,442.20x = 1,087,700.10 × 409,514.20
  4. Step 4: Simplify right side
    724,442.20x = 445,428,636,291.42
  5. Step 5: Solve for x
    x = 445,428,636,291.42/724,442.20
  6. Step 6: Final answer
    x = 614,857.38

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Double scale
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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.