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Finding the Fourth Proportional to 482,660.60, 666,168.54 and 278,744.72

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Solution

The fourth proportional to 482,660.60, 666,168.54 and 278,744.72 is: 384,723.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,660.60 : 666,168.54 = 278,744.72 : x
  2. Step 2: Convert to fraction form
    482,660.60/666,168.54 = 278,744.72/x
  3. Step 3: Cross multiply
    482,660.60x = 666,168.54 × 278,744.72
  4. Step 4: Simplify right side
    482,660.60x = 185,690,963,155.11
  5. Step 5: Solve for x
    x = 185,690,963,155.11/482,660.60
  6. Step 6: Final answer
    x = 384,723.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.