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Finding the Fourth Proportional to 494,482.80, 743,279.40 and 485,151.60

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Solution

The fourth proportional to 494,482.80, 743,279.40 and 485,151.60 is: 729,253.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,482.80 : 743,279.40 = 485,151.60 : x
  2. Step 2: Convert to fraction form
    494,482.80/743,279.40 = 485,151.60/x
  3. Step 3: Cross multiply
    494,482.80x = 743,279.40 × 485,151.60
  4. Step 4: Simplify right side
    494,482.80x = 360,603,190,157.04
  5. Step 5: Solve for x
    x = 360,603,190,157.04/494,482.80
  6. Step 6: Final answer
    x = 729,253.25

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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.