Home / 687,172.14-948,265.54-381,245.27

Finding the Fourth Proportional to 687,172.14, 948,265.54 and 381,245.27

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Solution

The fourth proportional to 687,172.14, 948,265.54 and 381,245.27 is: 526,100.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,172.14 : 948,265.54 = 381,245.27 : x
  2. Step 2: Convert to fraction form
    687,172.14/948,265.54 = 381,245.27/x
  3. Step 3: Cross multiply
    687,172.14x = 948,265.54 × 381,245.27
  4. Step 4: Simplify right side
    687,172.14x = 361,521,746,134.56
  5. Step 5: Solve for x
    x = 361,521,746,134.56/687,172.14
  6. Step 6: Final answer
    x = 526,100.70

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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.