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Finding the Fourth Proportional to 479,641.01, 661,909.86 and 264,781.22

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Solution

The fourth proportional to 479,641.01, 661,909.86 and 264,781.22 is: 365,400.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,641.01 : 661,909.86 = 264,781.22 : x
  2. Step 2: Convert to fraction form
    479,641.01/661,909.86 = 264,781.22/x
  3. Step 3: Cross multiply
    479,641.01x = 661,909.86 × 264,781.22
  4. Step 4: Simplify right side
    479,641.01x = 175,261,296,951.28
  5. Step 5: Solve for x
    x = 175,261,296,951.28/479,641.01
  6. Step 6: Final answer
    x = 365,400.99

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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.