Home / 868,831.20-1,303,246.80-658,879.20

Finding the Fourth Proportional to 868,831.20, 1,303,246.80 and 658,879.20

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Solution

The fourth proportional to 868,831.20, 1,303,246.80 and 658,879.20 is: 988,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,831.20 : 1,303,246.80 = 658,879.20 : x
  2. Step 2: Convert to fraction form
    868,831.20/1,303,246.80 = 658,879.20/x
  3. Step 3: Cross multiply
    868,831.20x = 1,303,246.80 × 658,879.20
  4. Step 4: Simplify right side
    868,831.20x = 858,682,208,986.56
  5. Step 5: Solve for x
    x = 858,682,208,986.56/868,831.20
  6. Step 6: Final answer
    x = 988,318.80

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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.