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Finding the Fourth Proportional to 648,382.32, 894,781.08 and 361,914.48

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Solution

The fourth proportional to 648,382.32, 894,781.08 and 361,914.48 is: 499,449.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,382.32 : 894,781.08 = 361,914.48 : x
  2. Step 2: Convert to fraction form
    648,382.32/894,781.08 = 361,914.48/x
  3. Step 3: Cross multiply
    648,382.32x = 894,781.08 × 361,914.48
  4. Step 4: Simplify right side
    648,382.32x = 323,834,229,282.04
  5. Step 5: Solve for x
    x = 323,834,229,282.04/648,382.32
  6. Step 6: Final answer
    x = 499,449.51

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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.