Home / 687,229.29-948,428.37-381,363.57

Finding the Fourth Proportional to 687,229.29, 948,428.37 and 381,363.57

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Solution

The fourth proportional to 687,229.29, 948,428.37 and 381,363.57 is: 526,310.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,229.29 : 948,428.37 = 381,363.57 : x
  2. Step 2: Convert to fraction form
    687,229.29/948,428.37 = 381,363.57/x
  3. Step 3: Cross multiply
    687,229.29x = 948,428.37 × 381,363.57
  4. Step 4: Simplify right side
    687,229.29x = 361,696,029,072.48
  5. Step 5: Solve for x
    x = 361,696,029,072.48/687,229.29
  6. Step 6: Final answer
    x = 526,310.56

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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.