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Finding the Fourth Proportional to 625,549.78, 938,180.76 and 372,901.60

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Solution

The fourth proportional to 625,549.78, 938,180.76 and 372,901.60 is: 559,266.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,549.78 : 938,180.76 = 372,901.60 : x
  2. Step 2: Convert to fraction form
    625,549.78/938,180.76 = 372,901.60/x
  3. Step 3: Cross multiply
    625,549.78x = 938,180.76 × 372,901.60
  4. Step 4: Simplify right side
    625,549.78x = 349,849,106,493.22
  5. Step 5: Solve for x
    x = 349,849,106,493.22/625,549.78
  6. Step 6: Final answer
    x = 559,266.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.