Home / 438,869.39-658,304.09-123,326.30

Finding the Fourth Proportional to 438,869.39, 658,304.09 and 123,326.30

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Solution

The fourth proportional to 438,869.39, 658,304.09 and 123,326.30 is: 184,989.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,869.39 : 658,304.09 = 123,326.30 : x
  2. Step 2: Convert to fraction form
    438,869.39/658,304.09 = 123,326.30/x
  3. Step 3: Cross multiply
    438,869.39x = 658,304.09 × 123,326.30
  4. Step 4: Simplify right side
    438,869.39x = 81,186,205,136.35
  5. Step 5: Solve for x
    x = 81,186,205,136.35/438,869.39
  6. Step 6: Final answer
    x = 184,989.45

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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.