Home / 820,248.62-1,232,121.58-772,309.10

Finding the Fourth Proportional to 820,248.62, 1,232,121.58 and 772,309.10

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Solution

The fourth proportional to 820,248.62, 1,232,121.58 and 772,309.10 is: 1,160,110.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,248.62 : 1,232,121.58 = 772,309.10 : x
  2. Step 2: Convert to fraction form
    820,248.62/1,232,121.58 = 772,309.10/x
  3. Step 3: Cross multiply
    820,248.62x = 1,232,121.58 × 772,309.10
  4. Step 4: Simplify right side
    820,248.62x = 951,578,708,540.38
  5. Step 5: Solve for x
    x = 951,578,708,540.38/820,248.62
  6. Step 6: Final answer
    x = 1,160,110.10

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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.