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Finding the Fourth Proportional to 580,451.90, 800,979.66 and 325,753.88

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Solution

The fourth proportional to 580,451.90, 800,979.66 and 325,753.88 is: 449,515.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,451.90 : 800,979.66 = 325,753.88 : x
  2. Step 2: Convert to fraction form
    580,451.90/800,979.66 = 325,753.88/x
  3. Step 3: Cross multiply
    580,451.90x = 800,979.66 × 325,753.88
  4. Step 4: Simplify right side
    580,451.90x = 260,922,228,041.18
  5. Step 5: Solve for x
    x = 260,922,228,041.18/580,451.90
  6. Step 6: Final answer
    x = 449,515.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.