Home / 482,821.11-724,231.64-257,498.91

Finding the Fourth Proportional to 482,821.11, 724,231.64 and 257,498.91

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Solution

The fourth proportional to 482,821.11, 724,231.64 and 257,498.91 is: 386,248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,821.11 : 724,231.64 = 257,498.91 : x
  2. Step 2: Convert to fraction form
    482,821.11/724,231.64 = 257,498.91/x
  3. Step 3: Cross multiply
    482,821.11x = 724,231.64 × 257,498.91
  4. Step 4: Simplify right side
    482,821.11x = 186,488,856,600.02
  5. Step 5: Solve for x
    x = 186,488,856,600.02/482,821.11
  6. Step 6: Final answer
    x = 386,248.35

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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.