Home / 721,087.32-1,080,781.56-294,356.64

Finding the Fourth Proportional to 721,087.32, 1,080,781.56 and 294,356.64

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Solution

The fourth proportional to 721,087.32, 1,080,781.56 and 294,356.64 is: 441,188.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,087.32 : 1,080,781.56 = 294,356.64 : x
  2. Step 2: Convert to fraction form
    721,087.32/1,080,781.56 = 294,356.64/x
  3. Step 3: Cross multiply
    721,087.32x = 1,080,781.56 × 294,356.64
  4. Step 4: Simplify right side
    721,087.32x = 318,135,228,575.56
  5. Step 5: Solve for x
    x = 318,135,228,575.56/721,087.32
  6. Step 6: Final answer
    x = 441,188.22

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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.