Home / 494,435.38-739,621.86-394,790.20

Finding the Fourth Proportional to 494,435.38, 739,621.86 and 394,790.20

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Solution

The fourth proportional to 494,435.38, 739,621.86 and 394,790.20 is: 590,563.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,435.38 : 739,621.86 = 394,790.20 : x
  2. Step 2: Convert to fraction form
    494,435.38/739,621.86 = 394,790.20/x
  3. Step 3: Cross multiply
    494,435.38x = 739,621.86 × 394,790.20
  4. Step 4: Simplify right side
    494,435.38x = 291,995,462,033.77
  5. Step 5: Solve for x
    x = 291,995,462,033.77/494,435.38
  6. Step 6: Final answer
    x = 590,563.45

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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.