Home / 439,004.48-658,569.48-135,424.28

Finding the Fourth Proportional to 439,004.48, 658,569.48 and 135,424.28

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Solution

The fourth proportional to 439,004.48, 658,569.48 and 135,424.28 is: 203,155.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,004.48 : 658,569.48 = 135,424.28 : x
  2. Step 2: Convert to fraction form
    439,004.48/658,569.48 = 135,424.28/x
  3. Step 3: Cross multiply
    439,004.48x = 658,569.48 × 135,424.28
  4. Step 4: Simplify right side
    439,004.48x = 89,186,297,658.97
  5. Step 5: Solve for x
    x = 89,186,297,658.97/439,004.48
  6. Step 6: Final answer
    x = 203,155.78

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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.