Home / 1,381,785.48-1,906,867.83-801,121.45

Finding the Fourth Proportional to 1,381,785.48, 1,906,867.83 and 801,121.45

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Solution

The fourth proportional to 1,381,785.48, 1,906,867.83 and 801,121.45 is: 1,105,549.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,785.48 : 1,906,867.83 = 801,121.45 : x
  2. Step 2: Convert to fraction form
    1,381,785.48/1,906,867.83 = 801,121.45/x
  3. Step 3: Cross multiply
    1,381,785.48x = 1,906,867.83 × 801,121.45
  4. Step 4: Simplify right side
    1,381,785.48x = 1,527,632,720,927.95
  5. Step 5: Solve for x
    x = 1,527,632,720,927.95/1,381,785.48
  6. Step 6: Final answer
    x = 1,105,549.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.