Home / 538,495.20-743,119.92-296,778

Finding the Fourth Proportional to 538,495.20, 743,119.92 and 296,778

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Solution

The fourth proportional to 538,495.20, 743,119.92 and 296,778 is: 409,551.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,495.20 : 743,119.92 = 296,778 : x
  2. Step 2: Convert to fraction form
    538,495.20/743,119.92 = 296,778/x
  3. Step 3: Cross multiply
    538,495.20x = 743,119.92 × 296,778
  4. Step 4: Simplify right side
    538,495.20x = 220,541,643,617.76
  5. Step 5: Solve for x
    x = 220,541,643,617.76/538,495.20
  6. Step 6: Final answer
    x = 409,551.74

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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.