Home / 809,773.47-1,215,397.44-431,012.34

Finding the Fourth Proportional to 809,773.47, 1,215,397.44 and 431,012.34

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Solution

The fourth proportional to 809,773.47, 1,215,397.44 and 431,012.34 is: 646,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,773.47 : 1,215,397.44 = 431,012.34 : x
  2. Step 2: Convert to fraction form
    809,773.47/1,215,397.44 = 431,012.34/x
  3. Step 3: Cross multiply
    809,773.47x = 1,215,397.44 × 431,012.34
  4. Step 4: Simplify right side
    809,773.47x = 523,851,294,644.41
  5. Step 5: Solve for x
    x = 523,851,294,644.41/809,773.47
  6. Step 6: Final answer
    x = 646,910.91

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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.