Home / 820,922.70-1,231,384.05-741,206.55

Finding the Fourth Proportional to 820,922.70, 1,231,384.05 and 741,206.55

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Solution

The fourth proportional to 820,922.70, 1,231,384.05 and 741,206.55 is: 1,111,809.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,922.70 : 1,231,384.05 = 741,206.55 : x
  2. Step 2: Convert to fraction form
    820,922.70/1,231,384.05 = 741,206.55/x
  3. Step 3: Cross multiply
    820,922.70x = 1,231,384.05 × 741,206.55
  4. Step 4: Simplify right side
    820,922.70x = 912,709,923,425.53
  5. Step 5: Solve for x
    x = 912,709,923,425.53/820,922.70
  6. Step 6: Final answer
    x = 1,111,809.83

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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.