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Finding the Fourth Proportional to 518,559.20, 776,917.20 and 444,831.20

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Solution

The fourth proportional to 518,559.20, 776,917.20 and 444,831.20 is: 666,456.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,559.20 : 776,917.20 = 444,831.20 : x
  2. Step 2: Convert to fraction form
    518,559.20/776,917.20 = 444,831.20/x
  3. Step 3: Cross multiply
    518,559.20x = 776,917.20 × 444,831.20
  4. Step 4: Simplify right side
    518,559.20x = 345,597,010,376.64
  5. Step 5: Solve for x
    x = 345,597,010,376.64/518,559.20
  6. Step 6: Final answer
    x = 666,456.23

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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.