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Finding the Fourth Proportional to 543,614.70, 815,422.05 and 342,848.10

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Solution

The fourth proportional to 543,614.70, 815,422.05 and 342,848.10 is: 514,272.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,614.70 : 815,422.05 = 342,848.10 : x
  2. Step 2: Convert to fraction form
    543,614.70/815,422.05 = 342,848.10/x
  3. Step 3: Cross multiply
    543,614.70x = 815,422.05 × 342,848.10
  4. Step 4: Simplify right side
    543,614.70x = 279,565,900,540.61
  5. Step 5: Solve for x
    x = 279,565,900,540.61/543,614.70
  6. Step 6: Final answer
    x = 514,272.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.