Home / 481,851.12-664,971.84-290,827.20

Finding the Fourth Proportional to 481,851.12, 664,971.84 and 290,827.20

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Solution

The fourth proportional to 481,851.12, 664,971.84 and 290,827.20 is: 401,351.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,851.12 : 664,971.84 = 290,827.20 : x
  2. Step 2: Convert to fraction form
    481,851.12/664,971.84 = 290,827.20/x
  3. Step 3: Cross multiply
    481,851.12x = 664,971.84 × 290,827.20
  4. Step 4: Simplify right side
    481,851.12x = 193,391,898,306.05
  5. Step 5: Solve for x
    x = 193,391,898,306.05/481,851.12
  6. Step 6: Final answer
    x = 401,351.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.