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Finding the Fourth Proportional to 622,892.40, 935,375.40 and 342,610.80

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Solution

The fourth proportional to 622,892.40, 935,375.40 and 342,610.80 is: 514,486.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,892.40 : 935,375.40 = 342,610.80 : x
  2. Step 2: Convert to fraction form
    622,892.40/935,375.40 = 342,610.80/x
  3. Step 3: Cross multiply
    622,892.40x = 935,375.40 × 342,610.80
  4. Step 4: Simplify right side
    622,892.40x = 320,469,714,094.32
  5. Step 5: Solve for x
    x = 320,469,714,094.32/622,892.40
  6. Step 6: Final answer
    x = 514,486.47

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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.