Home / 403,930.20-605,895.30-325,198.20

Finding the Fourth Proportional to 403,930.20, 605,895.30 and 325,198.20

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Solution

The fourth proportional to 403,930.20, 605,895.30 and 325,198.20 is: 487,797.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,930.20 : 605,895.30 = 325,198.20 : x
  2. Step 2: Convert to fraction form
    403,930.20/605,895.30 = 325,198.20/x
  3. Step 3: Cross multiply
    403,930.20x = 605,895.30 × 325,198.20
  4. Step 4: Simplify right side
    403,930.20x = 197,036,060,948.46
  5. Step 5: Solve for x
    x = 197,036,060,948.46/403,930.20
  6. Step 6: Final answer
    x = 487,797.30

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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.