Home / 1,586,849.66-2,189,844.60-861,690.92

Finding the Fourth Proportional to 1,586,849.66, 2,189,844.60 and 861,690.92

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Solution

The fourth proportional to 1,586,849.66, 2,189,844.60 and 861,690.92 is: 1,189,129.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,849.66 : 2,189,844.60 = 861,690.92 : x
  2. Step 2: Convert to fraction form
    1,586,849.66/2,189,844.60 = 861,690.92/x
  3. Step 3: Cross multiply
    1,586,849.66x = 2,189,844.60 × 861,690.92
  4. Step 4: Simplify right side
    1,586,849.66x = 1,886,969,208,031.03
  5. Step 5: Solve for x
    x = 1,886,969,208,031.03/1,586,849.66
  6. Step 6: Final answer
    x = 1,189,129.16

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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.