Home / 438,923.36-658,385.01-123,380.26

Finding the Fourth Proportional to 438,923.36, 658,385.01 and 123,380.26

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Solution

The fourth proportional to 438,923.36, 658,385.01 and 123,380.26 is: 185,070.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,923.36 : 658,385.01 = 123,380.26 : x
  2. Step 2: Convert to fraction form
    438,923.36/658,385.01 = 123,380.26/x
  3. Step 3: Cross multiply
    438,923.36x = 658,385.01 × 123,380.26
  4. Step 4: Simplify right side
    438,923.36x = 81,231,712,067.94
  5. Step 5: Solve for x
    x = 81,231,712,067.94/438,923.36
  6. Step 6: Final answer
    x = 185,070.38

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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.