Home / 810,470.91-1,215,706.37-305,145.26

Finding the Fourth Proportional to 810,470.91, 1,215,706.37 and 305,145.26

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Solution

The fourth proportional to 810,470.91, 1,215,706.37 and 305,145.26 is: 457,717.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,470.91 : 1,215,706.37 = 305,145.26 : x
  2. Step 2: Convert to fraction form
    810,470.91/1,215,706.37 = 305,145.26/x
  3. Step 3: Cross multiply
    810,470.91x = 1,215,706.37 × 305,145.26
  4. Step 4: Simplify right side
    810,470.91x = 370,967,028,753.05
  5. Step 5: Solve for x
    x = 370,967,028,753.05/810,470.91
  6. Step 6: Final answer
    x = 457,717.88

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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.