Home / 1,266,287.52-1,747,616.80-722,557.20

Finding the Fourth Proportional to 1,266,287.52, 1,747,616.80 and 722,557.20

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Solution

The fourth proportional to 1,266,287.52, 1,747,616.80 and 722,557.20 is: 997,208.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,287.52 : 1,747,616.80 = 722,557.20 : x
  2. Step 2: Convert to fraction form
    1,266,287.52/1,747,616.80 = 722,557.20/x
  3. Step 3: Cross multiply
    1,266,287.52x = 1,747,616.80 × 722,557.20
  4. Step 4: Simplify right side
    1,266,287.52x = 1,262,753,101,680.96
  5. Step 5: Solve for x
    x = 1,262,753,101,680.96/1,266,287.52
  6. Step 6: Final answer
    x = 997,208.83

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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.