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Finding the Fourth Proportional to 663,294.80, 994,747.80 and 308,223.20

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Solution

The fourth proportional to 663,294.80, 994,747.80 and 308,223.20 is: 462,244.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,294.80 : 994,747.80 = 308,223.20 : x
  2. Step 2: Convert to fraction form
    663,294.80/994,747.80 = 308,223.20/x
  3. Step 3: Cross multiply
    663,294.80x = 994,747.80 × 308,223.20
  4. Step 4: Simplify right side
    663,294.80x = 306,604,350,108.96
  5. Step 5: Solve for x
    x = 306,604,350,108.96/663,294.80
  6. Step 6: Final answer
    x = 462,244.47

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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.