Home / 1,222,999.20-1,687,754.21-679,168.85

Finding the Fourth Proportional to 1,222,999.20, 1,687,754.21 and 679,168.85

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Solution

The fourth proportional to 1,222,999.20, 1,687,754.21 and 679,168.85 is: 937,261.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,999.20 : 1,687,754.21 = 679,168.85 : x
  2. Step 2: Convert to fraction form
    1,222,999.20/1,687,754.21 = 679,168.85/x
  3. Step 3: Cross multiply
    1,222,999.20x = 1,687,754.21 × 679,168.85
  4. Step 4: Simplify right side
    1,222,999.20x = 1,146,270,074,053.74
  5. Step 5: Solve for x
    x = 1,146,270,074,053.74/1,222,999.20
  6. Step 6: Final answer
    x = 937,261.51

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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.