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Finding the Fourth Proportional to 662,728.20, 994,092.30 and 347,281.80

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Solution

The fourth proportional to 662,728.20, 994,092.30 and 347,281.80 is: 520,922.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,728.20 : 994,092.30 = 347,281.80 : x
  2. Step 2: Convert to fraction form
    662,728.20/994,092.30 = 347,281.80/x
  3. Step 3: Cross multiply
    662,728.20x = 994,092.30 × 347,281.80
  4. Step 4: Simplify right side
    662,728.20x = 345,230,163,310.14
  5. Step 5: Solve for x
    x = 345,230,163,310.14/662,728.20
  6. Step 6: Final answer
    x = 520,922.70

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Similar ratio
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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.