Home / 805,276.35-1,207,028.79-331,703.37

Finding the Fourth Proportional to 805,276.35, 1,207,028.79 and 331,703.37

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Solution

The fourth proportional to 805,276.35, 1,207,028.79 and 331,703.37 is: 497,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,276.35 : 1,207,028.79 = 331,703.37 : x
  2. Step 2: Convert to fraction form
    805,276.35/1,207,028.79 = 331,703.37/x
  3. Step 3: Cross multiply
    805,276.35x = 1,207,028.79 × 331,703.37
  4. Step 4: Simplify right side
    805,276.35x = 400,375,517,330.02
  5. Step 5: Solve for x
    x = 400,375,517,330.02/805,276.35
  6. Step 6: Final answer
    x = 497,190.21

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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.