Home / 687,175.39-948,270.04-381,248.52

Finding the Fourth Proportional to 687,175.39, 948,270.04 and 381,248.52

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Solution

The fourth proportional to 687,175.39, 948,270.04 and 381,248.52 is: 526,105.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,175.39 : 948,270.04 = 381,248.52 : x
  2. Step 2: Convert to fraction form
    687,175.39/948,270.04 = 381,248.52/x
  3. Step 3: Cross multiply
    687,175.39x = 948,270.04 × 381,248.52
  4. Step 4: Simplify right side
    687,175.39x = 361,526,549,310.34
  5. Step 5: Solve for x
    x = 361,526,549,310.34/687,175.39
  6. Step 6: Final answer
    x = 526,105.20

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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.