Home / 1,079,351.43-1,618,731.59-405,380.60

Finding the Fourth Proportional to 1,079,351.43, 1,618,731.59 and 405,380.60

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Solution

The fourth proportional to 1,079,351.43, 1,618,731.59 and 405,380.60 is: 607,959.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,351.43 : 1,618,731.59 = 405,380.60 : x
  2. Step 2: Convert to fraction form
    1,079,351.43/1,618,731.59 = 405,380.60/x
  3. Step 3: Cross multiply
    1,079,351.43x = 1,618,731.59 × 405,380.60
  4. Step 4: Simplify right side
    1,079,351.43x = 656,202,373,072.59
  5. Step 5: Solve for x
    x = 656,202,373,072.59/1,079,351.43
  6. Step 6: Final answer
    x = 607,959.89

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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.