Home / 438,962.07-658,443.10-123,418.98

Finding the Fourth Proportional to 438,962.07, 658,443.10 and 123,418.98

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Solution

The fourth proportional to 438,962.07, 658,443.10 and 123,418.98 is: 185,128.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,962.07 : 658,443.10 = 123,418.98 : x
  2. Step 2: Convert to fraction form
    438,962.07/658,443.10 = 123,418.98/x
  3. Step 3: Cross multiply
    438,962.07x = 658,443.10 × 123,418.98
  4. Step 4: Simplify right side
    438,962.07x = 81,264,372,497.82
  5. Step 5: Solve for x
    x = 81,264,372,497.82/438,962.07
  6. Step 6: Final answer
    x = 185,128.46

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Similar ratio
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1.5x scale

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.