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Finding the Fourth Proportional to 668,287.62, 1,002,616.41 and 308,568.54

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Solution

The fourth proportional to 668,287.62, 1,002,616.41 and 308,568.54 is: 462,938.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,287.62 : 1,002,616.41 = 308,568.54 : x
  2. Step 2: Convert to fraction form
    668,287.62/1,002,616.41 = 308,568.54/x
  3. Step 3: Cross multiply
    668,287.62x = 1,002,616.41 × 308,568.54
  4. Step 4: Simplify right side
    668,287.62x = 309,375,881,813.74
  5. Step 5: Solve for x
    x = 309,375,881,813.74/668,287.62
  6. Step 6: Final answer
    x = 462,938.22

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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.