Home / 438,982.48-658,473.99-123,439.39

Finding the Fourth Proportional to 438,982.48, 658,473.99 and 123,439.39

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Solution

The fourth proportional to 438,982.48, 658,473.99 and 123,439.39 is: 185,159.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,982.48 : 658,473.99 = 123,439.39 : x
  2. Step 2: Convert to fraction form
    438,982.48/658,473.99 = 123,439.39/x
  3. Step 3: Cross multiply
    438,982.48x = 658,473.99 × 123,439.39
  4. Step 4: Simplify right side
    438,982.48x = 81,281,627,656.47
  5. Step 5: Solve for x
    x = 81,281,627,656.47/438,982.48
  6. Step 6: Final answer
    x = 185,159.16

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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.