Home / 805,213.40-1,207,965.90-404,846.60

Finding the Fourth Proportional to 805,213.40, 1,207,965.90 and 404,846.60

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Solution

The fourth proportional to 805,213.40, 1,207,965.90 and 404,846.60 is: 607,343.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,213.40 : 1,207,965.90 = 404,846.60 : x
  2. Step 2: Convert to fraction form
    805,213.40/1,207,965.90 = 404,846.60/x
  3. Step 3: Cross multiply
    805,213.40x = 1,207,965.90 × 404,846.60
  4. Step 4: Simplify right side
    805,213.40x = 489,040,887,530.94
  5. Step 5: Solve for x
    x = 489,040,887,530.94/805,213.40
  6. Step 6: Final answer
    x = 607,343.21

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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.