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Finding the Fourth Proportional to 483,678, 667,486.98 and 268,827.12

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Solution

The fourth proportional to 483,678, 667,486.98 and 268,827.12 is: 370,987.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,678 : 667,486.98 = 268,827.12 : x
  2. Step 2: Convert to fraction form
    483,678/667,486.98 = 268,827.12/x
  3. Step 3: Cross multiply
    483,678x = 667,486.98 × 268,827.12
  4. Step 4: Simplify right side
    483,678x = 179,438,602,470.90
  5. Step 5: Solve for x
    x = 179,438,602,470.90/483,678
  6. Step 6: Final answer
    x = 370,987.73

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1.5x scale

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.