Home / 687,172.44-948,265.98-381,245.57

Finding the Fourth Proportional to 687,172.44, 948,265.98 and 381,245.57

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Solution

The fourth proportional to 687,172.44, 948,265.98 and 381,245.57 is: 526,101.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,172.44 : 948,265.98 = 381,245.57 : x
  2. Step 2: Convert to fraction form
    687,172.44/948,265.98 = 381,245.57/x
  3. Step 3: Cross multiply
    687,172.44x = 948,265.98 × 381,245.57
  4. Step 4: Simplify right side
    687,172.44x = 361,522,204,056.71
  5. Step 5: Solve for x
    x = 361,522,204,056.71/687,172.44
  6. Step 6: Final answer
    x = 526,101.14

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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.