Home / 687,186.92-948,285.82-381,260.04

Finding the Fourth Proportional to 687,186.92, 948,285.82 and 381,260.04

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Solution

The fourth proportional to 687,186.92, 948,285.82 and 381,260.04 is: 526,121.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,186.92 : 948,285.82 = 381,260.04 : x
  2. Step 2: Convert to fraction form
    687,186.92/948,285.82 = 381,260.04/x
  3. Step 3: Cross multiply
    687,186.92x = 948,285.82 × 381,260.04
  4. Step 4: Simplify right side
    687,186.92x = 361,543,489,664.63
  5. Step 5: Solve for x
    x = 361,543,489,664.63/687,186.92
  6. Step 6: Final answer
    x = 526,121.03

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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.