Home / 809,587.31-1,117,209.20-447,003.36

Finding the Fourth Proportional to 809,587.31, 1,117,209.20 and 447,003.36

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Solution

The fourth proportional to 809,587.31, 1,117,209.20 and 447,003.36 is: 616,852.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,587.31 : 1,117,209.20 = 447,003.36 : x
  2. Step 2: Convert to fraction form
    809,587.31/1,117,209.20 = 447,003.36/x
  3. Step 3: Cross multiply
    809,587.31x = 1,117,209.20 × 447,003.36
  4. Step 4: Simplify right side
    809,587.31x = 499,396,263,987.90
  5. Step 5: Solve for x
    x = 499,396,263,987.90/809,587.31
  6. Step 6: Final answer
    x = 616,852.88

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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.