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Finding the Fourth Proportional to 479,531.36, 661,758.78 and 264,671.60

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Solution

The fourth proportional to 479,531.36, 661,758.78 and 264,671.60 is: 365,249.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,531.36 : 661,758.78 = 264,671.60 : x
  2. Step 2: Convert to fraction form
    479,531.36/661,758.78 = 264,671.60/x
  3. Step 3: Cross multiply
    479,531.36x = 661,758.78 × 264,671.60
  4. Step 4: Simplify right side
    479,531.36x = 175,148,755,116.65
  5. Step 5: Solve for x
    x = 175,148,755,116.65/479,531.36
  6. Step 6: Final answer
    x = 365,249.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.