Home / 721,091.45-1,080,874.45-271,617.84

Finding the Fourth Proportional to 721,091.45, 1,080,874.45 and 271,617.84

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Solution

The fourth proportional to 721,091.45, 1,080,874.45 and 271,617.84 is: 407,139.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,091.45 : 1,080,874.45 = 271,617.84 : x
  2. Step 2: Convert to fraction form
    721,091.45/1,080,874.45 = 271,617.84/x
  3. Step 3: Cross multiply
    721,091.45x = 1,080,874.45 × 271,617.84
  4. Step 4: Simplify right side
    721,091.45x = 293,584,782,741.14
  5. Step 5: Solve for x
    x = 293,584,782,741.14/721,091.45
  6. Step 6: Final answer
    x = 407,139.46

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Double scale
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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.