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Finding the Fourth Proportional to 625,253.46, 862,838.43 and 353,315.58

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Solution

The fourth proportional to 625,253.46, 862,838.43 and 353,315.58 is: 487,569.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,253.46 : 862,838.43 = 353,315.58 : x
  2. Step 2: Convert to fraction form
    625,253.46/862,838.43 = 353,315.58/x
  3. Step 3: Cross multiply
    625,253.46x = 862,838.43 × 353,315.58
  4. Step 4: Simplify right side
    625,253.46x = 304,854,260,341.74
  5. Step 5: Solve for x
    x = 304,854,260,341.74/625,253.46
  6. Step 6: Final answer
    x = 487,569.09

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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.