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Finding the Fourth Proportional to 484,304.80, 726,111.60 and 217,847.20

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Solution

The fourth proportional to 484,304.80, 726,111.60 and 217,847.20 is: 326,615.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,304.80 : 726,111.60 = 217,847.20 : x
  2. Step 2: Convert to fraction form
    484,304.80/726,111.60 = 217,847.20/x
  3. Step 3: Cross multiply
    484,304.80x = 726,111.60 × 217,847.20
  4. Step 4: Simplify right side
    484,304.80x = 158,181,378,947.52
  5. Step 5: Solve for x
    x = 158,181,378,947.52/484,304.80
  6. Step 6: Final answer
    x = 326,615.34

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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.