Home / 1,439,289.14-1,986,335.87-827,640.72

Finding the Fourth Proportional to 1,439,289.14, 1,986,335.87 and 827,640.72

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Solution

The fourth proportional to 1,439,289.14, 1,986,335.87 and 827,640.72 is: 1,142,211.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,289.14 : 1,986,335.87 = 827,640.72 : x
  2. Step 2: Convert to fraction form
    1,439,289.14/1,986,335.87 = 827,640.72/x
  3. Step 3: Cross multiply
    1,439,289.14x = 1,986,335.87 × 827,640.72
  4. Step 4: Simplify right side
    1,439,289.14x = 1,643,972,445,470.42
  5. Step 5: Solve for x
    x = 1,643,972,445,470.42/1,439,289.14
  6. Step 6: Final answer
    x = 1,142,211.39

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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.