Home / 1,587,221.45-2,190,371.85-862,081.27

Finding the Fourth Proportional to 1,587,221.45, 2,190,371.85 and 862,081.27

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Solution

The fourth proportional to 1,587,221.45, 2,190,371.85 and 862,081.27 is: 1,189,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,221.45 : 2,190,371.85 = 862,081.27 : x
  2. Step 2: Convert to fraction form
    1,587,221.45/2,190,371.85 = 862,081.27/x
  3. Step 3: Cross multiply
    1,587,221.45x = 2,190,371.85 × 862,081.27
  4. Step 4: Simplify right side
    1,587,221.45x = 1,888,278,540,744.32
  5. Step 5: Solve for x
    x = 1,888,278,540,744.32/1,587,221.45
  6. Step 6: Final answer
    x = 1,189,675.55

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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.