Home / 442,046.20-663,069.30-331,454.20

Finding the Fourth Proportional to 442,046.20, 663,069.30 and 331,454.20

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Solution

The fourth proportional to 442,046.20, 663,069.30 and 331,454.20 is: 497,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,046.20 : 663,069.30 = 331,454.20 : x
  2. Step 2: Convert to fraction form
    442,046.20/663,069.30 = 331,454.20/x
  3. Step 3: Cross multiply
    442,046.20x = 663,069.30 × 331,454.20
  4. Step 4: Simplify right side
    442,046.20x = 219,777,104,376.06
  5. Step 5: Solve for x
    x = 219,777,104,376.06/442,046.20
  6. Step 6: Final answer
    x = 497,181.30

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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.