Home / 925,134.23-1,387,831.79-285,490.04

Finding the Fourth Proportional to 925,134.23, 1,387,831.79 and 285,490.04

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Solution

The fourth proportional to 925,134.23, 1,387,831.79 and 285,490.04 is: 428,275.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,134.23 : 1,387,831.79 = 285,490.04 : x
  2. Step 2: Convert to fraction form
    925,134.23/1,387,831.79 = 285,490.04/x
  3. Step 3: Cross multiply
    925,134.23x = 1,387,831.79 × 285,490.04
  4. Step 4: Simplify right side
    925,134.23x = 396,212,147,014.94
  5. Step 5: Solve for x
    x = 396,212,147,014.94/925,134.23
  6. Step 6: Final answer
    x = 428,275.31

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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.