Home / 641,722.48-885,626.21-366,086.40

Finding the Fourth Proportional to 641,722.48, 885,626.21 and 366,086.40

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Solution

The fourth proportional to 641,722.48, 885,626.21 and 366,086.40 is: 505,227.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,722.48 : 885,626.21 = 366,086.40 : x
  2. Step 2: Convert to fraction form
    641,722.48/885,626.21 = 366,086.40/x
  3. Step 3: Cross multiply
    641,722.48x = 885,626.21 × 366,086.40
  4. Step 4: Simplify right side
    641,722.48x = 324,215,711,481.07
  5. Step 5: Solve for x
    x = 324,215,711,481.07/641,722.48
  6. Step 6: Final answer
    x = 505,227.29

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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.