Home / 729,470.80-1,091,581.80-493,274.80

Finding the Fourth Proportional to 729,470.80, 1,091,581.80 and 493,274.80

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Solution

The fourth proportional to 729,470.80, 1,091,581.80 and 493,274.80 is: 738,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,470.80 : 1,091,581.80 = 493,274.80 : x
  2. Step 2: Convert to fraction form
    729,470.80/1,091,581.80 = 493,274.80/x
  3. Step 3: Cross multiply
    729,470.80x = 1,091,581.80 × 493,274.80
  4. Step 4: Simplify right side
    729,470.80x = 538,449,794,078.64
  5. Step 5: Solve for x
    x = 538,449,794,078.64/729,470.80
  6. Step 6: Final answer
    x = 738,137.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.