Home / 724,031.91-999,211.77-418,121.13

Finding the Fourth Proportional to 724,031.91, 999,211.77 and 418,121.13

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Solution

The fourth proportional to 724,031.91, 999,211.77 and 418,121.13 is: 577,034.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,031.91 : 999,211.77 = 418,121.13 : x
  2. Step 2: Convert to fraction form
    724,031.91/999,211.77 = 418,121.13/x
  3. Step 3: Cross multiply
    724,031.91x = 999,211.77 × 418,121.13
  4. Step 4: Simplify right side
    724,031.91x = 417,791,554,381.70
  5. Step 5: Solve for x
    x = 417,791,554,381.70/724,031.91
  6. Step 6: Final answer
    x = 577,034.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.