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Finding the Fourth Proportional to 552,863.76, 763,187.40 and 371,680.78

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Solution

The fourth proportional to 552,863.76, 763,187.40 and 371,680.78 is: 513,077.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,863.76 : 763,187.40 = 371,680.78 : x
  2. Step 2: Convert to fraction form
    552,863.76/763,187.40 = 371,680.78/x
  3. Step 3: Cross multiply
    552,863.76x = 763,187.40 × 371,680.78
  4. Step 4: Simplify right side
    552,863.76x = 283,662,088,118.17
  5. Step 5: Solve for x
    x = 283,662,088,118.17/552,863.76
  6. Step 6: Final answer
    x = 513,077.74

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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.