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Finding the Fourth Proportional to 483,874.97, 667,784.81 and 290,289.93

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Solution

The fourth proportional to 483,874.97, 667,784.81 and 290,289.93 is: 400,622.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,874.97 : 667,784.81 = 290,289.93 : x
  2. Step 2: Convert to fraction form
    483,874.97/667,784.81 = 290,289.93/x
  3. Step 3: Cross multiply
    483,874.97x = 667,784.81 × 290,289.93
  4. Step 4: Simplify right side
    483,874.97x = 193,851,202,338.61
  5. Step 5: Solve for x
    x = 193,851,202,338.61/483,874.97
  6. Step 6: Final answer
    x = 400,622.51

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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.