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Finding the Fourth Proportional to 663,865.74, 992,019.38 and 498,469.89

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Solution

The fourth proportional to 663,865.74, 992,019.38 and 498,469.89 is: 744,867.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,865.74 : 992,019.38 = 498,469.89 : x
  2. Step 2: Convert to fraction form
    663,865.74/992,019.38 = 498,469.89/x
  3. Step 3: Cross multiply
    663,865.74x = 992,019.38 × 498,469.89
  4. Step 4: Simplify right side
    663,865.74x = 494,491,792,454.19
  5. Step 5: Solve for x
    x = 494,491,792,454.19/663,865.74
  6. Step 6: Final answer
    x = 744,867.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.