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Finding the Fourth Proportional to 662,787, 914,589.90 and 372,375.84

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Solution

The fourth proportional to 662,787, 914,589.90 and 372,375.84 is: 513,847.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,787 : 914,589.90 = 372,375.84 : x
  2. Step 2: Convert to fraction form
    662,787/914,589.90 = 372,375.84/x
  3. Step 3: Cross multiply
    662,787x = 914,589.90 × 372,375.84
  4. Step 4: Simplify right side
    662,787x = 340,571,182,268.02
  5. Step 5: Solve for x
    x = 340,571,182,268.02/662,787
  6. Step 6: Final answer
    x = 513,847.11

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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.