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Finding the Fourth Proportional to 479,619.03, 661,866.12 and 264,753.57

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Solution

The fourth proportional to 479,619.03, 661,866.12 and 264,753.57 is: 365,355.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,619.03 : 661,866.12 = 264,753.57 : x
  2. Step 2: Convert to fraction form
    479,619.03/661,866.12 = 264,753.57/x
  3. Step 3: Cross multiply
    479,619.03x = 661,866.12 × 264,753.57
  4. Step 4: Simplify right side
    479,619.03x = 175,231,418,132.05
  5. Step 5: Solve for x
    x = 175,231,418,132.05/479,619.03
  6. Step 6: Final answer
    x = 365,355.43

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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.