Home / 724,811.80-1,085,067.30-538,648.60

Finding the Fourth Proportional to 724,811.80, 1,085,067.30 and 538,648.60

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Solution

The fourth proportional to 724,811.80, 1,085,067.30 and 538,648.60 is: 806,374.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,811.80 : 1,085,067.30 = 538,648.60 : x
  2. Step 2: Convert to fraction form
    724,811.80/1,085,067.30 = 538,648.60/x
  3. Step 3: Cross multiply
    724,811.80x = 1,085,067.30 × 538,648.60
  4. Step 4: Simplify right side
    724,811.80x = 584,469,982,050.78
  5. Step 5: Solve for x
    x = 584,469,982,050.78/724,811.80
  6. Step 6: Final answer
    x = 806,374.82

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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.