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Finding the Fourth Proportional to 625,030.84, 862,480.92 and 349,337.80

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Solution

The fourth proportional to 625,030.84, 862,480.92 and 349,337.80 is: 482,051.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,030.84 : 862,480.92 = 349,337.80 : x
  2. Step 2: Convert to fraction form
    625,030.84/862,480.92 = 349,337.80/x
  3. Step 3: Cross multiply
    625,030.84x = 862,480.92 × 349,337.80
  4. Step 4: Simplify right side
    625,030.84x = 301,297,187,134.78
  5. Step 5: Solve for x
    x = 301,297,187,134.78/625,030.84
  6. Step 6: Final answer
    x = 482,051.71

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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.