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Finding the Fourth Proportional to 483,831.06, 667,774.13 and 279,853.62

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Solution

The fourth proportional to 483,831.06, 667,774.13 and 279,853.62 is: 386,248.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,831.06 : 667,774.13 = 279,853.62 : x
  2. Step 2: Convert to fraction form
    483,831.06/667,774.13 = 279,853.62/x
  3. Step 3: Cross multiply
    483,831.06x = 667,774.13 × 279,853.62
  4. Step 4: Simplify right side
    483,831.06x = 186,879,007,622.85
  5. Step 5: Solve for x
    x = 186,879,007,622.85/483,831.06
  6. Step 6: Final answer
    x = 386,248.47

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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.