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Finding the Fourth Proportional to 609,601.64, 914,577.42 and 398,978.96

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Solution

The fourth proportional to 609,601.64, 914,577.42 and 398,978.96 is: 598,582.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,601.64 : 914,577.42 = 398,978.96 : x
  2. Step 2: Convert to fraction form
    609,601.64/914,577.42 = 398,978.96/x
  3. Step 3: Cross multiply
    609,601.64x = 914,577.42 × 398,978.96
  4. Step 4: Simplify right side
    609,601.64x = 364,897,147,871.08
  5. Step 5: Solve for x
    x = 364,897,147,871.08/609,601.64
  6. Step 6: Final answer
    x = 598,582.95

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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.