Home / 498,298.08-687,641.76-271,945.20

Finding the Fourth Proportional to 498,298.08, 687,641.76 and 271,945.20

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Solution

The fourth proportional to 498,298.08, 687,641.76 and 271,945.20 is: 375,279.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,298.08 : 687,641.76 = 271,945.20 : x
  2. Step 2: Convert to fraction form
    498,298.08/687,641.76 = 271,945.20/x
  3. Step 3: Cross multiply
    498,298.08x = 687,641.76 × 271,945.20
  4. Step 4: Simplify right side
    498,298.08x = 187,000,875,951.55
  5. Step 5: Solve for x
    x = 187,000,875,951.55/498,298.08
  6. Step 6: Final answer
    x = 375,279.14

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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.