Home / 858,022.20-1,287,033.30-218,324.70

Finding the Fourth Proportional to 858,022.20, 1,287,033.30 and 218,324.70

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Solution

The fourth proportional to 858,022.20, 1,287,033.30 and 218,324.70 is: 327,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,022.20 : 1,287,033.30 = 218,324.70 : x
  2. Step 2: Convert to fraction form
    858,022.20/1,287,033.30 = 218,324.70/x
  3. Step 3: Cross multiply
    858,022.20x = 1,287,033.30 × 218,324.70
  4. Step 4: Simplify right side
    858,022.20x = 280,991,159,112.51
  5. Step 5: Solve for x
    x = 280,991,159,112.51/858,022.20
  6. Step 6: Final answer
    x = 327,487.05

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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.