Home / 394,518.10-591,777.15-328,908.10

Finding the Fourth Proportional to 394,518.10, 591,777.15 and 328,908.10

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Solution

The fourth proportional to 394,518.10, 591,777.15 and 328,908.10 is: 493,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,518.10 : 591,777.15 = 328,908.10 : x
  2. Step 2: Convert to fraction form
    394,518.10/591,777.15 = 328,908.10/x
  3. Step 3: Cross multiply
    394,518.10x = 591,777.15 × 328,908.10
  4. Step 4: Simplify right side
    394,518.10x = 194,640,298,029.92
  5. Step 5: Solve for x
    x = 194,640,298,029.92/394,518.10
  6. Step 6: Final answer
    x = 493,362.15

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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.