Home / 881,201.20-1,321,801.80-821,714.80

Finding the Fourth Proportional to 881,201.20, 1,321,801.80 and 821,714.80

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Solution

The fourth proportional to 881,201.20, 1,321,801.80 and 821,714.80 is: 1,232,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,201.20 : 1,321,801.80 = 821,714.80 : x
  2. Step 2: Convert to fraction form
    881,201.20/1,321,801.80 = 821,714.80/x
  3. Step 3: Cross multiply
    881,201.20x = 1,321,801.80 × 821,714.80
  4. Step 4: Simplify right side
    881,201.20x = 1,086,144,101,726.64
  5. Step 5: Solve for x
    x = 1,086,144,101,726.64/881,201.20
  6. Step 6: Final answer
    x = 1,232,572.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.