Home / 724,370.20-1,087,332.90-409,442.20

Finding the Fourth Proportional to 724,370.20, 1,087,332.90 and 409,442.20

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Solution

The fourth proportional to 724,370.20, 1,087,332.90 and 409,442.20 is: 614,602.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,370.20 : 1,087,332.90 = 409,442.20 : x
  2. Step 2: Convert to fraction form
    724,370.20/1,087,332.90 = 409,442.20/x
  3. Step 3: Cross multiply
    724,370.20x = 1,087,332.90 × 409,442.20
  4. Step 4: Simplify right side
    724,370.20x = 445,199,974,708.38
  5. Step 5: Solve for x
    x = 445,199,974,708.38/724,370.20
  6. Step 6: Final answer
    x = 614,602.83

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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.