Home / 701,772.40-1,052,140.20-280,831.60

Finding the Fourth Proportional to 701,772.40, 1,052,140.20 and 280,831.60

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Solution

The fourth proportional to 701,772.40, 1,052,140.20 and 280,831.60 is: 421,039.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,772.40 : 1,052,140.20 = 280,831.60 : x
  2. Step 2: Convert to fraction form
    701,772.40/1,052,140.20 = 280,831.60/x
  3. Step 3: Cross multiply
    701,772.40x = 1,052,140.20 × 280,831.60
  4. Step 4: Simplify right side
    701,772.40x = 295,474,215,790.32
  5. Step 5: Solve for x
    x = 295,474,215,790.32/701,772.40
  6. Step 6: Final answer
    x = 421,039.95

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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.