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Finding the Fourth Proportional to 648,605.70, 972,908.55 and 449,151.30

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Solution

The fourth proportional to 648,605.70, 972,908.55 and 449,151.30 is: 673,726.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,605.70 : 972,908.55 = 449,151.30 : x
  2. Step 2: Convert to fraction form
    648,605.70/972,908.55 = 449,151.30/x
  3. Step 3: Cross multiply
    648,605.70x = 972,908.55 × 449,151.30
  4. Step 4: Simplify right side
    648,605.70x = 436,983,140,013.62
  5. Step 5: Solve for x
    x = 436,983,140,013.62/648,605.70
  6. Step 6: Final answer
    x = 673,726.95

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Similar ratio
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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.