Home / 419,115.15-628,766.52-152,875.71

Finding the Fourth Proportional to 419,115.15, 628,766.52 and 152,875.71

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Solution

The fourth proportional to 419,115.15, 628,766.52 and 152,875.71 is: 229,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,115.15 : 628,766.52 = 152,875.71 : x
  2. Step 2: Convert to fraction form
    419,115.15/628,766.52 = 152,875.71/x
  3. Step 3: Cross multiply
    419,115.15x = 628,766.52 × 152,875.71
  4. Step 4: Simplify right side
    419,115.15x = 96,123,128,169.23
  5. Step 5: Solve for x
    x = 96,123,128,169.23/419,115.15
  6. Step 6: Final answer
    x = 229,347.78

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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.