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Finding the Fourth Proportional to 483,589.86, 667,333.80 and 268,728

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Solution

The fourth proportional to 483,589.86, 667,333.80 and 268,728 is: 370,833.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,589.86 : 667,333.80 = 268,728 : x
  2. Step 2: Convert to fraction form
    483,589.86/667,333.80 = 268,728/x
  3. Step 3: Cross multiply
    483,589.86x = 667,333.80 × 268,728
  4. Step 4: Simplify right side
    483,589.86x = 179,331,277,406.40
  5. Step 5: Solve for x
    x = 179,331,277,406.40/483,589.86
  6. Step 6: Final answer
    x = 370,833.41

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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.