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Finding the Fourth Proportional to 681,147.03, 940,012.06 and 379,341.03

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Solution

The fourth proportional to 681,147.03, 940,012.06 and 379,341.03 is: 523,506.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,147.03 : 940,012.06 = 379,341.03 : x
  2. Step 2: Convert to fraction form
    681,147.03/940,012.06 = 379,341.03/x
  3. Step 3: Cross multiply
    681,147.03x = 940,012.06 × 379,341.03
  4. Step 4: Simplify right side
    681,147.03x = 356,585,145,650.37
  5. Step 5: Solve for x
    x = 356,585,145,650.37/681,147.03
  6. Step 6: Final answer
    x = 523,506.86

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Similar ratio
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1.5x scale

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.