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Finding the Fourth Proportional to 680,751.42, 939,372.03 and 374,824.14

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Solution

The fourth proportional to 680,751.42, 939,372.03 and 374,824.14 is: 517,221.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,751.42 : 939,372.03 = 374,824.14 : x
  2. Step 2: Convert to fraction form
    680,751.42/939,372.03 = 374,824.14/x
  3. Step 3: Cross multiply
    680,751.42x = 939,372.03 × 374,824.14
  4. Step 4: Simplify right side
    680,751.42x = 352,099,313,284.80
  5. Step 5: Solve for x
    x = 352,099,313,284.80/680,751.42
  6. Step 6: Final answer
    x = 517,221.56

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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.