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Finding the Fourth Proportional to 872,732.68, 1,204,363.56 and 490,751.32

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Solution

The fourth proportional to 872,732.68, 1,204,363.56 and 490,751.32 is: 677,232.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,732.68 : 1,204,363.56 = 490,751.32 : x
  2. Step 2: Convert to fraction form
    872,732.68/1,204,363.56 = 490,751.32/x
  3. Step 3: Cross multiply
    872,732.68x = 1,204,363.56 × 490,751.32
  4. Step 4: Simplify right side
    872,732.68x = 591,043,006,829.90
  5. Step 5: Solve for x
    x = 591,043,006,829.90/872,732.68
  6. Step 6: Final answer
    x = 677,232.58

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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.