Home / 527,176.78-727,557.66-380,122.61

Finding the Fourth Proportional to 527,176.78, 727,557.66 and 380,122.61

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Solution

The fourth proportional to 527,176.78, 727,557.66 and 380,122.61 is: 524,607.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,176.78 : 727,557.66 = 380,122.61 : x
  2. Step 2: Convert to fraction form
    527,176.78/727,557.66 = 380,122.61/x
  3. Step 3: Cross multiply
    527,176.78x = 727,557.66 × 380,122.61
  4. Step 4: Simplify right side
    527,176.78x = 276,561,113,006.90
  5. Step 5: Solve for x
    x = 276,561,113,006.90/527,176.78
  6. Step 6: Final answer
    x = 524,607.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.