Home / 485,675.66-729,147.03-326,464.79

Finding the Fourth Proportional to 485,675.66, 729,147.03 and 326,464.79

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Solution

The fourth proportional to 485,675.66, 729,147.03 and 326,464.79 is: 490,123.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,675.66 : 729,147.03 = 326,464.79 : x
  2. Step 2: Convert to fraction form
    485,675.66/729,147.03 = 326,464.79/x
  3. Step 3: Cross multiply
    485,675.66x = 729,147.03 × 326,464.79
  4. Step 4: Simplify right side
    485,675.66x = 238,040,832,028.07
  5. Step 5: Solve for x
    x = 238,040,832,028.07/485,675.66
  6. Step 6: Final answer
    x = 490,123.04

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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.