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Finding the Fourth Proportional to 804,626.80, 1,207,620.60 and 331,651.60

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Solution

The fourth proportional to 804,626.80, 1,207,620.60 and 331,651.60 is: 497,757.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,626.80 : 1,207,620.60 = 331,651.60 : x
  2. Step 2: Convert to fraction form
    804,626.80/1,207,620.60 = 331,651.60/x
  3. Step 3: Cross multiply
    804,626.80x = 1,207,620.60 × 331,651.60
  4. Step 4: Simplify right side
    804,626.80x = 400,509,304,182.96
  5. Step 5: Solve for x
    x = 400,509,304,182.96/804,626.80
  6. Step 6: Final answer
    x = 497,757.85

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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.