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Finding the Fourth Proportional to 609,560.64, 914,515.92 and 398,937.96

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Solution

The fourth proportional to 609,560.64, 914,515.92 and 398,937.96 is: 598,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,560.64 : 914,515.92 = 398,937.96 : x
  2. Step 2: Convert to fraction form
    609,560.64/914,515.92 = 398,937.96/x
  3. Step 3: Cross multiply
    609,560.64x = 914,515.92 × 398,937.96
  4. Step 4: Simplify right side
    609,560.64x = 364,835,115,512.32
  5. Step 5: Solve for x
    x = 364,835,115,512.32/609,560.64
  6. Step 6: Final answer
    x = 598,521.45

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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.