Home / 1,438,232.40-1,984,857.75-826,585.20

Finding the Fourth Proportional to 1,438,232.40, 1,984,857.75 and 826,585.20

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Solution

The fourth proportional to 1,438,232.40, 1,984,857.75 and 826,585.20 is: 1,140,743.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,232.40 : 1,984,857.75 = 826,585.20 : x
  2. Step 2: Convert to fraction form
    1,438,232.40/1,984,857.75 = 826,585.20/x
  3. Step 3: Cross multiply
    1,438,232.40x = 1,984,857.75 × 826,585.20
  4. Step 4: Simplify right side
    1,438,232.40x = 1,640,654,040,255.30
  5. Step 5: Solve for x
    x = 1,640,654,040,255.30/1,438,232.40
  6. Step 6: Final answer
    x = 1,140,743.35

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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.