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Finding the Fourth Proportional to 576,166.20, 862,175.70 and 389,542.20

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Solution

The fourth proportional to 576,166.20, 862,175.70 and 389,542.20 is: 582,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,166.20 : 862,175.70 = 389,542.20 : x
  2. Step 2: Convert to fraction form
    576,166.20/862,175.70 = 389,542.20/x
  3. Step 3: Cross multiply
    576,166.20x = 862,175.70 × 389,542.20
  4. Step 4: Simplify right side
    576,166.20x = 335,853,818,964.54
  5. Step 5: Solve for x
    x = 335,853,818,964.54/576,166.20
  6. Step 6: Final answer
    x = 582,911.35

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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.