Home / 628,912.89-867,764.75-374,214.33

Finding the Fourth Proportional to 628,912.89, 867,764.75 and 374,214.33

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Solution

The fourth proportional to 628,912.89, 867,764.75 and 374,214.33 is: 516,335.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,912.89 : 867,764.75 = 374,214.33 : x
  2. Step 2: Convert to fraction form
    628,912.89/867,764.75 = 374,214.33/x
  3. Step 3: Cross multiply
    628,912.89x = 867,764.75 × 374,214.33
  4. Step 4: Simplify right side
    628,912.89x = 324,730,002,647.80
  5. Step 5: Solve for x
    x = 324,730,002,647.80/628,912.89
  6. Step 6: Final answer
    x = 516,335.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.