Home / 1,586,642.96-2,189,605.34-861,521.24

Finding the Fourth Proportional to 1,586,642.96, 2,189,605.34 and 861,521.24

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Solution

The fourth proportional to 1,586,642.96, 2,189,605.34 and 861,521.24 is: 1,188,919.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,642.96 : 2,189,605.34 = 861,521.24 : x
  2. Step 2: Convert to fraction form
    1,586,642.96/2,189,605.34 = 861,521.24/x
  3. Step 3: Cross multiply
    1,586,642.96x = 2,189,605.34 × 861,521.24
  4. Step 4: Simplify right side
    1,586,642.96x = 1,886,391,507,627.42
  5. Step 5: Solve for x
    x = 1,886,391,507,627.42/1,586,642.96
  6. Step 6: Final answer
    x = 1,188,919.97

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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.