Home / 925,695.81-1,388,044.40-419,980.82

Finding the Fourth Proportional to 925,695.81, 1,388,044.40 and 419,980.82

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Solution

The fourth proportional to 925,695.81, 1,388,044.40 and 419,980.82 is: 629,744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,695.81 : 1,388,044.40 = 419,980.82 : x
  2. Step 2: Convert to fraction form
    925,695.81/1,388,044.40 = 419,980.82/x
  3. Step 3: Cross multiply
    925,695.81x = 1,388,044.40 × 419,980.82
  4. Step 4: Simplify right side
    925,695.81x = 582,952,016,268.28
  5. Step 5: Solve for x
    x = 582,952,016,268.28/925,695.81
  6. Step 6: Final answer
    x = 629,744.68

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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.