Home / 1,149,970.80-1,586,961.36-640,691.04

Finding the Fourth Proportional to 1,149,970.80, 1,586,961.36 and 640,691.04

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Solution

The fourth proportional to 1,149,970.80, 1,586,961.36 and 640,691.04 is: 884,154.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,970.80 : 1,586,961.36 = 640,691.04 : x
  2. Step 2: Convert to fraction form
    1,149,970.80/1,586,961.36 = 640,691.04/x
  3. Step 3: Cross multiply
    1,149,970.80x = 1,586,961.36 × 640,691.04
  4. Step 4: Simplify right side
    1,149,970.80x = 1,016,751,924,178.21
  5. Step 5: Solve for x
    x = 1,016,751,924,178.21/1,149,970.80
  6. Step 6: Final answer
    x = 884,154.56

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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.