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Finding the Fourth Proportional to 632,375.47, 872,668.64 and 377,677.45

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Solution

The fourth proportional to 632,375.47, 872,668.64 and 377,677.45 is: 521,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,375.47 : 872,668.64 = 377,677.45 : x
  2. Step 2: Convert to fraction form
    632,375.47/872,668.64 = 377,677.45/x
  3. Step 3: Cross multiply
    632,375.47x = 872,668.64 × 377,677.45
  4. Step 4: Simplify right side
    632,375.47x = 329,587,266,560.76
  5. Step 5: Solve for x
    x = 329,587,266,560.76/632,375.47
  6. Step 6: Final answer
    x = 521,189.20

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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.