Home / 1,791,991.78-2,472,947.56-987,175.78

Finding the Fourth Proportional to 1,791,991.78, 2,472,947.56 and 987,175.78

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Solution

The fourth proportional to 1,791,991.78, 2,472,947.56 and 987,175.78 is: 1,362,301.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,991.78 : 2,472,947.56 = 987,175.78 : x
  2. Step 2: Convert to fraction form
    1,791,991.78/2,472,947.56 = 987,175.78/x
  3. Step 3: Cross multiply
    1,791,991.78x = 2,472,947.56 × 987,175.78
  4. Step 4: Simplify right side
    1,791,991.78x = 2,441,233,936,442.10
  5. Step 5: Solve for x
    x = 2,441,233,936,442.10/1,791,991.78
  6. Step 6: Final answer
    x = 1,362,301.97

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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.