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Finding the Fourth Proportional to 609,002.60, 913,115.10 and 254,157.80

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Solution

The fourth proportional to 609,002.60, 913,115.10 and 254,157.80 is: 381,074.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,002.60 : 913,115.10 = 254,157.80 : x
  2. Step 2: Convert to fraction form
    609,002.60/913,115.10 = 254,157.80/x
  3. Step 3: Cross multiply
    609,002.60x = 913,115.10 × 254,157.80
  4. Step 4: Simplify right side
    609,002.60x = 232,075,324,962.78
  5. Step 5: Solve for x
    x = 232,075,324,962.78/609,002.60
  6. Step 6: Final answer
    x = 381,074.44

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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.