Home / 721,002.28-1,081,505.79-271,602.54

Finding the Fourth Proportional to 721,002.28, 1,081,505.79 and 271,602.54

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Solution

The fourth proportional to 721,002.28, 1,081,505.79 and 271,602.54 is: 407,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,002.28 : 1,081,505.79 = 271,602.54 : x
  2. Step 2: Convert to fraction form
    721,002.28/1,081,505.79 = 271,602.54/x
  3. Step 3: Cross multiply
    721,002.28x = 1,081,505.79 × 271,602.54
  4. Step 4: Simplify right side
    721,002.28x = 293,739,718,230.69
  5. Step 5: Solve for x
    x = 293,739,718,230.69/721,002.28
  6. Step 6: Final answer
    x = 407,404.70

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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.