Home / 1,268,831.20-1,903,233.84-427,377.28

Finding the Fourth Proportional to 1,268,831.20, 1,903,233.84 and 427,377.28

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Solution

The fourth proportional to 1,268,831.20, 1,903,233.84 and 427,377.28 is: 641,061.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,831.20 : 1,903,233.84 = 427,377.28 : x
  2. Step 2: Convert to fraction form
    1,268,831.20/1,903,233.84 = 427,377.28/x
  3. Step 3: Cross multiply
    1,268,831.20x = 1,903,233.84 × 427,377.28
  4. Step 4: Simplify right side
    1,268,831.20x = 813,398,901,743.16
  5. Step 5: Solve for x
    x = 813,398,901,743.16/1,268,831.20
  6. Step 6: Final answer
    x = 641,061.55

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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.