Home / 1,587,921.42-2,191,340.52-862,775.04

Finding the Fourth Proportional to 1,587,921.42, 2,191,340.52 and 862,775.04

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Solution

The fourth proportional to 1,587,921.42, 2,191,340.52 and 862,775.04 is: 1,190,634.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,921.42 : 2,191,340.52 = 862,775.04 : x
  2. Step 2: Convert to fraction form
    1,587,921.42/2,191,340.52 = 862,775.04/x
  3. Step 3: Cross multiply
    1,587,921.42x = 2,191,340.52 × 862,775.04
  4. Step 4: Simplify right side
    1,587,921.42x = 1,890,633,904,796.62
  5. Step 5: Solve for x
    x = 1,890,633,904,796.62/1,587,921.42
  6. Step 6: Final answer
    x = 1,190,634.42

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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.