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Finding the Fourth Proportional to 774.97, 1,162.05 and 582.19

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Solution

The fourth proportional to 774.97, 1,162.05 and 582.19 is: 872.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    774.97 : 1,162.05 = 582.19 : x
  2. Step 2: Convert to fraction form
    774.97/1,162.05 = 582.19/x
  3. Step 3: Cross multiply
    774.97x = 1,162.05 × 582.19
  4. Step 4: Simplify right side
    774.97x = 676,528.80
  5. Step 5: Solve for x
    x = 676,528.80/774.97
  6. Step 6: Final answer
    x = 872.98

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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.