Home / 845,818.40-1,268,869.76-419,375.27

Finding the Fourth Proportional to 845,818.40, 1,268,869.76 and 419,375.27

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Solution

The fourth proportional to 845,818.40, 1,268,869.76 and 419,375.27 is: 629,133.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,818.40 : 1,268,869.76 = 419,375.27 : x
  2. Step 2: Convert to fraction form
    845,818.40/1,268,869.76 = 419,375.27/x
  3. Step 3: Cross multiply
    845,818.40x = 1,268,869.76 × 419,375.27
  4. Step 4: Simplify right side
    845,818.40x = 532,132,589,753.61
  5. Step 5: Solve for x
    x = 532,132,589,753.61/845,818.40
  6. Step 6: Final answer
    x = 629,133.38

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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.