Home / 820,076.11-1,131,705.52-457,499.97

Finding the Fourth Proportional to 820,076.11, 1,131,705.52 and 457,499.97

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Solution

The fourth proportional to 820,076.11, 1,131,705.52 and 457,499.97 is: 631,350.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,076.11 : 1,131,705.52 = 457,499.97 : x
  2. Step 2: Convert to fraction form
    820,076.11/1,131,705.52 = 457,499.97/x
  3. Step 3: Cross multiply
    820,076.11x = 1,131,705.52 × 457,499.97
  4. Step 4: Simplify right side
    820,076.11x = 517,755,237,475.82
  5. Step 5: Solve for x
    x = 517,755,237,475.82/820,076.11
  6. Step 6: Final answer
    x = 631,350.23

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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.