Home / 687,096.48-948,194.24-381,172.85

Finding the Fourth Proportional to 687,096.48, 948,194.24 and 381,172.85

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Solution

The fourth proportional to 687,096.48, 948,194.24 and 381,172.85 is: 526,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,096.48 : 948,194.24 = 381,172.85 : x
  2. Step 2: Convert to fraction form
    687,096.48/948,194.24 = 381,172.85/x
  3. Step 3: Cross multiply
    687,096.48x = 948,194.24 × 381,172.85
  4. Step 4: Simplify right side
    687,096.48x = 361,425,904,137.80
  5. Step 5: Solve for x
    x = 361,425,904,137.80/687,096.48
  6. Step 6: Final answer
    x = 526,019.15

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1.5x scale

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.