Home / 689,745.69-1,034,662.23-216,449.73

Finding the Fourth Proportional to 689,745.69, 1,034,662.23 and 216,449.73

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Solution

The fourth proportional to 689,745.69, 1,034,662.23 and 216,449.73 is: 324,688.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,745.69 : 1,034,662.23 = 216,449.73 : x
  2. Step 2: Convert to fraction form
    689,745.69/1,034,662.23 = 216,449.73/x
  3. Step 3: Cross multiply
    689,745.69x = 1,034,662.23 × 216,449.73
  4. Step 4: Simplify right side
    689,745.69x = 223,952,360,324.70
  5. Step 5: Solve for x
    x = 223,952,360,324.70/689,745.69
  6. Step 6: Final answer
    x = 324,688.31

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1.5x scale

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.