Home / 805,974.74-1,207,965.66-406,729.74

Finding the Fourth Proportional to 805,974.74, 1,207,965.66 and 406,729.74

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Solution

The fourth proportional to 805,974.74, 1,207,965.66 and 406,729.74 is: 609,591.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,974.74 : 1,207,965.66 = 406,729.74 : x
  2. Step 2: Convert to fraction form
    805,974.74/1,207,965.66 = 406,729.74/x
  3. Step 3: Cross multiply
    805,974.74x = 1,207,965.66 × 406,729.74
  4. Step 4: Simplify right side
    805,974.74x = 491,315,558,820.73
  5. Step 5: Solve for x
    x = 491,315,558,820.73/805,974.74
  6. Step 6: Final answer
    x = 609,591.76

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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.