Home / 438,973.13-658,459.95-123,430.04

Finding the Fourth Proportional to 438,973.13, 658,459.95 and 123,430.04

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Solution

The fourth proportional to 438,973.13, 658,459.95 and 123,430.04 is: 185,145.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,973.13 : 658,459.95 = 123,430.04 : x
  2. Step 2: Convert to fraction form
    438,973.13/658,459.95 = 123,430.04/x
  3. Step 3: Cross multiply
    438,973.13x = 658,459.95 × 123,430.04
  4. Step 4: Simplify right side
    438,973.13x = 81,273,737,606.69
  5. Step 5: Solve for x
    x = 81,273,737,606.69/438,973.13
  6. Step 6: Final answer
    x = 185,145.13

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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.