Home / 687,174.76-948,269.17-381,247.88

Finding the Fourth Proportional to 687,174.76, 948,269.17 and 381,247.88

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Solution

The fourth proportional to 687,174.76, 948,269.17 and 381,247.88 is: 526,104.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,174.76 : 948,269.17 = 381,247.88 : x
  2. Step 2: Convert to fraction form
    687,174.76/948,269.17 = 381,247.88/x
  3. Step 3: Cross multiply
    687,174.76x = 948,269.17 × 381,247.88
  4. Step 4: Simplify right side
    687,174.76x = 361,525,610,731.86
  5. Step 5: Solve for x
    x = 361,525,610,731.86/687,174.76
  6. Step 6: Final answer
    x = 526,104.32

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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.