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Finding the Fourth Proportional to 712,375.84, 1,068,680.58 and 338,272.48

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Solution

The fourth proportional to 712,375.84, 1,068,680.58 and 338,272.48 is: 507,464.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,375.84 : 1,068,680.58 = 338,272.48 : x
  2. Step 2: Convert to fraction form
    712,375.84/1,068,680.58 = 338,272.48/x
  3. Step 3: Cross multiply
    712,375.84x = 1,068,680.58 × 338,272.48
  4. Step 4: Simplify right side
    712,375.84x = 361,505,230,124.44
  5. Step 5: Solve for x
    x = 361,505,230,124.44/712,375.84
  6. Step 6: Final answer
    x = 507,464.19

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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.