Home / 671,476.74-1,007,105.76-272,101.38

Finding the Fourth Proportional to 671,476.74, 1,007,105.76 and 272,101.38

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Solution

The fourth proportional to 671,476.74, 1,007,105.76 and 272,101.38 is: 408,107.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,476.74 : 1,007,105.76 = 272,101.38 : x
  2. Step 2: Convert to fraction form
    671,476.74/1,007,105.76 = 272,101.38/x
  3. Step 3: Cross multiply
    671,476.74x = 1,007,105.76 × 272,101.38
  4. Step 4: Simplify right side
    671,476.74x = 274,034,867,101.95
  5. Step 5: Solve for x
    x = 274,034,867,101.95/671,476.74
  6. Step 6: Final answer
    x = 408,107.76

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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.