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Finding the Fourth Proportional to 496,135.80, 744,203.70 and 285,600.60

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Solution

The fourth proportional to 496,135.80, 744,203.70 and 285,600.60 is: 428,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,135.80 : 744,203.70 = 285,600.60 : x
  2. Step 2: Convert to fraction form
    496,135.80/744,203.70 = 285,600.60/x
  3. Step 3: Cross multiply
    496,135.80x = 744,203.70 × 285,600.60
  4. Step 4: Simplify right side
    496,135.80x = 212,545,023,242.22
  5. Step 5: Solve for x
    x = 212,545,023,242.22/496,135.80
  6. Step 6: Final answer
    x = 428,400.90

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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.