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Finding the Fourth Proportional to 872,550.66, 1,204,134.96 and 485,397

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Solution

The fourth proportional to 872,550.66, 1,204,134.96 and 485,397 is: 669,856.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,550.66 : 1,204,134.96 = 485,397 : x
  2. Step 2: Convert to fraction form
    872,550.66/1,204,134.96 = 485,397/x
  3. Step 3: Cross multiply
    872,550.66x = 1,204,134.96 × 485,397
  4. Step 4: Simplify right side
    872,550.66x = 584,483,497,179.12
  5. Step 5: Solve for x
    x = 584,483,497,179.12/872,550.66
  6. Step 6: Final answer
    x = 669,856.23

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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.