Home / 2,069,831.28-3,105,141.60-722,378.76

Finding the Fourth Proportional to 2,069,831.28, 3,105,141.60 and 722,378.76

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Solution

The fourth proportional to 2,069,831.28, 3,105,141.60 and 722,378.76 is: 1,083,705.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069,831.28 : 3,105,141.60 = 722,378.76 : x
  2. Step 2: Convert to fraction form
    2,069,831.28/3,105,141.60 = 722,378.76/x
  3. Step 3: Cross multiply
    2,069,831.28x = 3,105,141.60 × 722,378.76
  4. Step 4: Simplify right side
    2,069,831.28x = 2,243,088,338,632.42
  5. Step 5: Solve for x
    x = 2,243,088,338,632.42/2,069,831.28
  6. Step 6: Final answer
    x = 1,083,705.88

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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.