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Finding the Fourth Proportional to 483,701.80, 724,677.90 and 394,472.20

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Solution

The fourth proportional to 483,701.80, 724,677.90 and 394,472.20 is: 590,994.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,701.80 : 724,677.90 = 394,472.20 : x
  2. Step 2: Convert to fraction form
    483,701.80/724,677.90 = 394,472.20/x
  3. Step 3: Cross multiply
    483,701.80x = 724,677.90 × 394,472.20
  4. Step 4: Simplify right side
    483,701.80x = 285,865,285,504.38
  5. Step 5: Solve for x
    x = 285,865,285,504.38/483,701.80
  6. Step 6: Final answer
    x = 590,994.88

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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.