Home / 671,839.38-1,007,752.80-272,385.20

Finding the Fourth Proportional to 671,839.38, 1,007,752.80 and 272,385.20

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Solution

The fourth proportional to 671,839.38, 1,007,752.80 and 272,385.20 is: 408,575.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,839.38 : 1,007,752.80 = 272,385.20 : x
  2. Step 2: Convert to fraction form
    671,839.38/1,007,752.80 = 272,385.20/x
  3. Step 3: Cross multiply
    671,839.38x = 1,007,752.80 × 272,385.20
  4. Step 4: Simplify right side
    671,839.38x = 274,496,947,978.56
  5. Step 5: Solve for x
    x = 274,496,947,978.56/671,839.38
  6. Step 6: Final answer
    x = 408,575.26

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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.