Home / 786,831.30-1,179,957.78-281,255.85

Finding the Fourth Proportional to 786,831.30, 1,179,957.78 and 281,255.85

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Solution

The fourth proportional to 786,831.30, 1,179,957.78 and 281,255.85 is: 421,780.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,831.30 : 1,179,957.78 = 281,255.85 : x
  2. Step 2: Convert to fraction form
    786,831.30/1,179,957.78 = 281,255.85/x
  3. Step 3: Cross multiply
    786,831.30x = 1,179,957.78 × 281,255.85
  4. Step 4: Simplify right side
    786,831.30x = 331,870,028,378.01
  5. Step 5: Solve for x
    x = 331,870,028,378.01/786,831.30
  6. Step 6: Final answer
    x = 421,780.41

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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.