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Finding the Fourth Proportional to 484,187.95, 667,906.32 and 290,544.22

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Solution

The fourth proportional to 484,187.95, 667,906.32 and 290,544.22 is: 400,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,187.95 : 667,906.32 = 290,544.22 : x
  2. Step 2: Convert to fraction form
    484,187.95/667,906.32 = 290,544.22/x
  3. Step 3: Cross multiply
    484,187.95x = 667,906.32 × 290,544.22
  4. Step 4: Simplify right side
    484,187.95x = 194,056,320,777.47
  5. Step 5: Solve for x
    x = 194,056,320,777.47/484,187.95
  6. Step 6: Final answer
    x = 400,787.18

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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.