Home / 1,047,489.31-1,445,494.57-640,272.97

Finding the Fourth Proportional to 1,047,489.31, 1,445,494.57 and 640,272.97

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Solution

The fourth proportional to 1,047,489.31, 1,445,494.57 and 640,272.97 is: 883,551.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,489.31 : 1,445,494.57 = 640,272.97 : x
  2. Step 2: Convert to fraction form
    1,047,489.31/1,445,494.57 = 640,272.97/x
  3. Step 3: Cross multiply
    1,047,489.31x = 1,445,494.57 × 640,272.97
  4. Step 4: Simplify right side
    1,047,489.31x = 925,511,101,452.77
  5. Step 5: Solve for x
    x = 925,511,101,452.77/1,047,489.31
  6. Step 6: Final answer
    x = 883,551.83

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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.