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Finding the Fourth Proportional to 625,031.30, 862,535.63 and 379,934.88

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Solution

The fourth proportional to 625,031.30, 862,535.63 and 379,934.88 is: 524,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,031.30 : 862,535.63 = 379,934.88 : x
  2. Step 2: Convert to fraction form
    625,031.30/862,535.63 = 379,934.88/x
  3. Step 3: Cross multiply
    625,031.30x = 862,535.63 × 379,934.88
  4. Step 4: Simplify right side
    625,031.30x = 327,707,369,180.10
  5. Step 5: Solve for x
    x = 327,707,369,180.10/625,031.30
  6. Step 6: Final answer
    x = 524,305.54

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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.