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Finding the Fourth Proportional to 632,668.68, 873,054.90 and 387,578.52

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Solution

The fourth proportional to 632,668.68, 873,054.90 and 387,578.52 is: 534,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,668.68 : 873,054.90 = 387,578.52 : x
  2. Step 2: Convert to fraction form
    632,668.68/873,054.90 = 387,578.52/x
  3. Step 3: Cross multiply
    632,668.68x = 873,054.90 × 387,578.52
  4. Step 4: Simplify right side
    632,668.68x = 338,377,326,020.75
  5. Step 5: Solve for x
    x = 338,377,326,020.75/632,668.68
  6. Step 6: Final answer
    x = 534,841.28

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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.