Home / 820,634.49-1,231,013.97-221,586.93

Finding the Fourth Proportional to 820,634.49, 1,231,013.97 and 221,586.93

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Solution

The fourth proportional to 820,634.49, 1,231,013.97 and 221,586.93 is: 332,397.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,634.49 : 1,231,013.97 = 221,586.93 : x
  2. Step 2: Convert to fraction form
    820,634.49/1,231,013.97 = 221,586.93/x
  3. Step 3: Cross multiply
    820,634.49x = 1,231,013.97 × 221,586.93
  4. Step 4: Simplify right side
    820,634.49x = 272,776,606,399.41
  5. Step 5: Solve for x
    x = 272,776,606,399.41/820,634.49
  6. Step 6: Final answer
    x = 332,397.20

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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.