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Finding the Fourth Proportional to 609,006.60, 913,121.10 and 254,161.80

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Solution

The fourth proportional to 609,006.60, 913,121.10 and 254,161.80 is: 381,080.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,006.60 : 913,121.10 = 254,161.80 : x
  2. Step 2: Convert to fraction form
    609,006.60/913,121.10 = 254,161.80/x
  3. Step 3: Cross multiply
    609,006.60x = 913,121.10 × 254,161.80
  4. Step 4: Simplify right side
    609,006.60x = 232,080,502,393.98
  5. Step 5: Solve for x
    x = 232,080,502,393.98/609,006.60
  6. Step 6: Final answer
    x = 381,080.44

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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.