Home / 687,175.26-948,269.86-381,248.38

Finding the Fourth Proportional to 687,175.26, 948,269.86 and 381,248.38

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Solution

The fourth proportional to 687,175.26, 948,269.86 and 381,248.38 is: 526,105.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,175.26 : 948,269.86 = 381,248.38 : x
  2. Step 2: Convert to fraction form
    687,175.26/948,269.86 = 381,248.38/x
  3. Step 3: Cross multiply
    687,175.26x = 948,269.86 × 381,248.38
  4. Step 4: Simplify right side
    687,175.26x = 361,526,347,927.83
  5. Step 5: Solve for x
    x = 361,526,347,927.83/687,175.26
  6. Step 6: Final answer
    x = 526,105.01

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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.