Home / 538,498.86-743,136.30-296,778.26

Finding the Fourth Proportional to 538,498.86, 743,136.30 and 296,778.26

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Solution

The fourth proportional to 538,498.86, 743,136.30 and 296,778.26 is: 409,558.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,498.86 : 743,136.30 = 296,778.26 : x
  2. Step 2: Convert to fraction form
    538,498.86/743,136.30 = 296,778.26/x
  3. Step 3: Cross multiply
    538,498.86x = 743,136.30 × 296,778.26
  4. Step 4: Simplify right side
    538,498.86x = 220,546,694,341.16
  5. Step 5: Solve for x
    x = 220,546,694,341.16/538,498.86
  6. Step 6: Final answer
    x = 409,558.33

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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.