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Finding the Fourth Proportional to 625,274.81, 862,889.17 and 349,663.61

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Solution

The fourth proportional to 625,274.81, 862,889.17 and 349,663.61 is: 482,541.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,274.81 : 862,889.17 = 349,663.61 : x
  2. Step 2: Convert to fraction form
    625,274.81/862,889.17 = 349,663.61/x
  3. Step 3: Cross multiply
    625,274.81x = 862,889.17 × 349,663.61
  4. Step 4: Simplify right side
    625,274.81x = 301,720,936,907.19
  5. Step 5: Solve for x
    x = 301,720,936,907.19/625,274.81
  6. Step 6: Final answer
    x = 482,541.33

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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.