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Finding the Fourth Proportional to 449,526.80, 674,290.20 and 394,230.80

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Solution

The fourth proportional to 449,526.80, 674,290.20 and 394,230.80 is: 591,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,526.80 : 674,290.20 = 394,230.80 : x
  2. Step 2: Convert to fraction form
    449,526.80/674,290.20 = 394,230.80/x
  3. Step 3: Cross multiply
    449,526.80x = 674,290.20 × 394,230.80
  4. Step 4: Simplify right side
    449,526.80x = 265,825,964,978.16
  5. Step 5: Solve for x
    x = 265,825,964,978.16/449,526.80
  6. Step 6: Final answer
    x = 591,346.20

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Similar ratio
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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.