Home / 479,649.86-661,918.26-261,858.89

Finding the Fourth Proportional to 479,649.86, 661,918.26 and 261,858.89

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Solution

The fourth proportional to 479,649.86, 661,918.26 and 261,858.89 is: 361,366.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,649.86 : 661,918.26 = 261,858.89 : x
  2. Step 2: Convert to fraction form
    479,649.86/661,918.26 = 261,858.89/x
  3. Step 3: Cross multiply
    479,649.86x = 661,918.26 × 261,858.89
  4. Step 4: Simplify right side
    479,649.86x = 173,329,180,834.33
  5. Step 5: Solve for x
    x = 173,329,180,834.33/479,649.86
  6. Step 6: Final answer
    x = 361,366.06

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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.