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Finding the Fourth Proportional to 491,571.20, 737,644 and 207,244.48

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Solution

The fourth proportional to 491,571.20, 737,644 and 207,244.48 is: 310,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,571.20 : 737,644 = 207,244.48 : x
  2. Step 2: Convert to fraction form
    491,571.20/737,644 = 207,244.48/x
  3. Step 3: Cross multiply
    491,571.20x = 737,644 × 207,244.48
  4. Step 4: Simplify right side
    491,571.20x = 152,872,647,205.12
  5. Step 5: Solve for x
    x = 152,872,647,205.12/491,571.20
  6. Step 6: Final answer
    x = 310,987.80

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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.