Home / 687,097.48-948,195.62-381,173.85

Finding the Fourth Proportional to 687,097.48, 948,195.62 and 381,173.85

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Solution

The fourth proportional to 687,097.48, 948,195.62 and 381,173.85 is: 526,020.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,097.48 : 948,195.62 = 381,173.85 : x
  2. Step 2: Convert to fraction form
    687,097.48/948,195.62 = 381,173.85/x
  3. Step 3: Cross multiply
    687,097.48x = 948,195.62 × 381,173.85
  4. Step 4: Simplify right side
    687,097.48x = 361,427,375,028.54
  5. Step 5: Solve for x
    x = 361,427,375,028.54/687,097.48
  6. Step 6: Final answer
    x = 526,020.52

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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.