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Finding the Fourth Proportional to 479,558.48, 661,780.48 and 261,759.92

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Solution

The fourth proportional to 479,558.48, 661,780.48 and 261,759.92 is: 361,223.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,558.48 : 661,780.48 = 261,759.92 : x
  2. Step 2: Convert to fraction form
    479,558.48/661,780.48 = 261,759.92/x
  3. Step 3: Cross multiply
    479,558.48x = 661,780.48 × 261,759.92
  4. Step 4: Simplify right side
    479,558.48x = 173,227,605,502.36
  5. Step 5: Solve for x
    x = 173,227,605,502.36/479,558.48
  6. Step 6: Final answer
    x = 361,223.11

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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.