Home / 819,719.08-1,229,577.53-220,680.90

Finding the Fourth Proportional to 819,719.08, 1,229,577.53 and 220,680.90

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Solution

The fourth proportional to 819,719.08, 1,229,577.53 and 220,680.90 is: 331,021.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,719.08 : 1,229,577.53 = 220,680.90 : x
  2. Step 2: Convert to fraction form
    819,719.08/1,229,577.53 = 220,680.90/x
  3. Step 3: Cross multiply
    819,719.08x = 1,229,577.53 × 220,680.90
  4. Step 4: Simplify right side
    819,719.08x = 271,344,271,053.41
  5. Step 5: Solve for x
    x = 271,344,271,053.41/819,719.08
  6. Step 6: Final answer
    x = 331,021.05

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1.5x scale

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.