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Finding the Fourth Proportional to 681,163.56, 939,994.56 and 375,269.04

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Solution

The fourth proportional to 681,163.56, 939,994.56 and 375,269.04 is: 517,865.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,163.56 : 939,994.56 = 375,269.04 : x
  2. Step 2: Convert to fraction form
    681,163.56/939,994.56 = 375,269.04/x
  3. Step 3: Cross multiply
    681,163.56x = 939,994.56 × 375,269.04
  4. Step 4: Simplify right side
    681,163.56x = 352,750,856,136.42
  5. Step 5: Solve for x
    x = 352,750,856,136.42/681,163.56
  6. Step 6: Final answer
    x = 517,865.13

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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.