Home / 687,179.14-948,275.19-381,252.27

Finding the Fourth Proportional to 687,179.14, 948,275.19 and 381,252.27

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Solution

The fourth proportional to 687,179.14, 948,275.19 and 381,252.27 is: 526,110.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,179.14 : 948,275.19 = 381,252.27 : x
  2. Step 2: Convert to fraction form
    687,179.14/948,275.19 = 381,252.27/x
  3. Step 3: Cross multiply
    687,179.14x = 948,275.19 × 381,252.27
  4. Step 4: Simplify right side
    687,179.14x = 361,532,068,772.18
  5. Step 5: Solve for x
    x = 361,532,068,772.18/687,179.14
  6. Step 6: Final answer
    x = 526,110.37

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Double scale
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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.