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Finding the Fourth Proportional to 548,513.10, 754,796.07 and 485,002.62

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Solution

The fourth proportional to 548,513.10, 754,796.07 and 485,002.62 is: 667,400.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,513.10 : 754,796.07 = 485,002.62 : x
  2. Step 2: Convert to fraction form
    548,513.10/754,796.07 = 485,002.62/x
  3. Step 3: Cross multiply
    548,513.10x = 754,796.07 × 485,002.62
  4. Step 4: Simplify right side
    548,513.10x = 366,078,071,515.70
  5. Step 5: Solve for x
    x = 366,078,071,515.70/548,513.10
  6. Step 6: Final answer
    x = 667,400.78

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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.