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Finding the Fourth Proportional to 625,691.25, 864,166.73 and 424,137.33

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Solution

The fourth proportional to 625,691.25, 864,166.73 and 424,137.33 is: 585,792.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,691.25 : 864,166.73 = 424,137.33 : x
  2. Step 2: Convert to fraction form
    625,691.25/864,166.73 = 424,137.33/x
  3. Step 3: Cross multiply
    625,691.25x = 864,166.73 × 424,137.33
  4. Step 4: Simplify right side
    625,691.25x = 366,525,367,416.34
  5. Step 5: Solve for x
    x = 366,525,367,416.34/625,691.25
  6. Step 6: Final answer
    x = 585,792.70

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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.