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Finding the Fourth Proportional to 578,928.44, 868,734.48 and 322,976

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Solution

The fourth proportional to 578,928.44, 868,734.48 and 322,976 is: 484,654.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,928.44 : 868,734.48 = 322,976 : x
  2. Step 2: Convert to fraction form
    578,928.44/868,734.48 = 322,976/x
  3. Step 3: Cross multiply
    578,928.44x = 868,734.48 × 322,976
  4. Step 4: Simplify right side
    578,928.44x = 280,580,387,412.48
  5. Step 5: Solve for x
    x = 280,580,387,412.48/578,928.44
  6. Step 6: Final answer
    x = 484,654.70

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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.