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Finding the Fourth Proportional to 680,847.52, 939,570.96 and 379,052.32

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Solution

The fourth proportional to 680,847.52, 939,570.96 and 379,052.32 is: 523,092.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,847.52 : 939,570.96 = 379,052.32 : x
  2. Step 2: Convert to fraction form
    680,847.52/939,570.96 = 379,052.32/x
  3. Step 3: Cross multiply
    680,847.52x = 939,570.96 × 379,052.32
  4. Step 4: Simplify right side
    680,847.52x = 356,146,552,192.63
  5. Step 5: Solve for x
    x = 356,146,552,192.63/680,847.52
  6. Step 6: Final answer
    x = 523,092.97

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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.