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Finding the Fourth Proportional to 322,741.74, 483,738.43 and 285,374.80

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Solution

The fourth proportional to 322,741.74, 483,738.43 and 285,374.80 is: 427,731.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,741.74 : 483,738.43 = 285,374.80 : x
  2. Step 2: Convert to fraction form
    322,741.74/483,738.43 = 285,374.80/x
  3. Step 3: Cross multiply
    322,741.74x = 483,738.43 × 285,374.80
  4. Step 4: Simplify right side
    322,741.74x = 138,046,755,418.85
  5. Step 5: Solve for x
    x = 138,046,755,418.85/322,741.74
  6. Step 6: Final answer
    x = 427,731.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.