Home / 609,540.53-914,370.93-210,128.72

Finding the Fourth Proportional to 609,540.53, 914,370.93 and 210,128.72

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Solution

The fourth proportional to 609,540.53, 914,370.93 and 210,128.72 is: 315,213.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,540.53 : 914,370.93 = 210,128.72 : x
  2. Step 2: Convert to fraction form
    609,540.53/914,370.93 = 210,128.72/x
  3. Step 3: Cross multiply
    609,540.53x = 914,370.93 × 210,128.72
  4. Step 4: Simplify right side
    609,540.53x = 192,135,588,554.26
  5. Step 5: Solve for x
    x = 192,135,588,554.26/609,540.53
  6. Step 6: Final answer
    x = 315,213.81

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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.