Home / 687,180.14-948,276.57-381,253.27

Finding the Fourth Proportional to 687,180.14, 948,276.57 and 381,253.27

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Solution

The fourth proportional to 687,180.14, 948,276.57 and 381,253.27 is: 526,111.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,180.14 : 948,276.57 = 381,253.27 : x
  2. Step 2: Convert to fraction form
    687,180.14/948,276.57 = 381,253.27/x
  3. Step 3: Cross multiply
    687,180.14x = 948,276.57 × 381,253.27
  4. Step 4: Simplify right side
    687,180.14x = 361,533,543,176.88
  5. Step 5: Solve for x
    x = 361,533,543,176.88/687,180.14
  6. Step 6: Final answer
    x = 526,111.75

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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.