Home / 747,578.89-1,121,540.05-215,104.33

Finding the Fourth Proportional to 747,578.89, 1,121,540.05 and 215,104.33

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Solution

The fourth proportional to 747,578.89, 1,121,540.05 and 215,104.33 is: 322,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,578.89 : 1,121,540.05 = 215,104.33 : x
  2. Step 2: Convert to fraction form
    747,578.89/1,121,540.05 = 215,104.33/x
  3. Step 3: Cross multiply
    747,578.89x = 1,121,540.05 × 215,104.33
  4. Step 4: Simplify right side
    747,578.89x = 241,248,118,488.45
  5. Step 5: Solve for x
    x = 241,248,118,488.45/747,578.89
  6. Step 6: Final answer
    x = 322,705.90

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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.