Home / 1,222,952.28-1,687,617.78-679,122.78

Finding the Fourth Proportional to 1,222,952.28, 1,687,617.78 and 679,122.78

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Solution

The fourth proportional to 1,222,952.28, 1,687,617.78 and 679,122.78 is: 937,158.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,952.28 : 1,687,617.78 = 679,122.78 : x
  2. Step 2: Convert to fraction form
    1,222,952.28/1,687,617.78 = 679,122.78/x
  3. Step 3: Cross multiply
    1,222,952.28x = 1,687,617.78 × 679,122.78
  4. Step 4: Simplify right side
    1,222,952.28x = 1,146,099,678,331.03
  5. Step 5: Solve for x
    x = 1,146,099,678,331.03/1,222,952.28
  6. Step 6: Final answer
    x = 937,158.14

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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.