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Finding the Fourth Proportional to 632,437.98, 872,753.04 and 345,955.56

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Solution

The fourth proportional to 632,437.98, 872,753.04 and 345,955.56 is: 477,412.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,437.98 : 872,753.04 = 345,955.56 : x
  2. Step 2: Convert to fraction form
    632,437.98/872,753.04 = 345,955.56/x
  3. Step 3: Cross multiply
    632,437.98x = 872,753.04 × 345,955.56
  4. Step 4: Simplify right side
    632,437.98x = 301,933,766,694.90
  5. Step 5: Solve for x
    x = 301,933,766,694.90/632,437.98
  6. Step 6: Final answer
    x = 477,412.45

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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.