Home / 729,039.40-1,093,559.10-408,862.60

Finding the Fourth Proportional to 729,039.40, 1,093,559.10 and 408,862.60

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Solution

The fourth proportional to 729,039.40, 1,093,559.10 and 408,862.60 is: 613,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,039.40 : 1,093,559.10 = 408,862.60 : x
  2. Step 2: Convert to fraction form
    729,039.40/1,093,559.10 = 408,862.60/x
  3. Step 3: Cross multiply
    729,039.40x = 1,093,559.10 × 408,862.60
  4. Step 4: Simplify right side
    729,039.40x = 447,115,416,879.66
  5. Step 5: Solve for x
    x = 447,115,416,879.66/729,039.40
  6. Step 6: Final answer
    x = 613,293.90

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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.