Home / 881,216.20-1,321,824.30-821,729.80

Finding the Fourth Proportional to 881,216.20, 1,321,824.30 and 821,729.80

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Solution

The fourth proportional to 881,216.20, 1,321,824.30 and 821,729.80 is: 1,232,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,216.20 : 1,321,824.30 = 821,729.80 : x
  2. Step 2: Convert to fraction form
    881,216.20/1,321,824.30 = 821,729.80/x
  3. Step 3: Cross multiply
    881,216.20x = 1,321,824.30 × 821,729.80
  4. Step 4: Simplify right side
    881,216.20x = 1,086,182,417,674.14
  5. Step 5: Solve for x
    x = 1,086,182,417,674.14/881,216.20
  6. Step 6: Final answer
    x = 1,232,594.70

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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.