Home / 1,586,773.90-2,189,691.38-861,606.62

Finding the Fourth Proportional to 1,586,773.90, 2,189,691.38 and 861,606.62

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Solution

The fourth proportional to 1,586,773.90, 2,189,691.38 and 861,606.62 is: 1,188,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,773.90 : 2,189,691.38 = 861,606.62 : x
  2. Step 2: Convert to fraction form
    1,586,773.90/2,189,691.38 = 861,606.62/x
  3. Step 3: Cross multiply
    1,586,773.90x = 2,189,691.38 × 861,606.62
  4. Step 4: Simplify right side
    1,586,773.90x = 1,886,652,583,335.30
  5. Step 5: Solve for x
    x = 1,886,652,583,335.30/1,586,773.90
  6. Step 6: Final answer
    x = 1,188,986.40

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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.