Home / 689,745.68-1,034,662.24-216,449.72

Finding the Fourth Proportional to 689,745.68, 1,034,662.24 and 216,449.72

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Solution

The fourth proportional to 689,745.68, 1,034,662.24 and 216,449.72 is: 324,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,745.68 : 1,034,662.24 = 216,449.72 : x
  2. Step 2: Convert to fraction form
    689,745.68/1,034,662.24 = 216,449.72/x
  3. Step 3: Cross multiply
    689,745.68x = 1,034,662.24 × 216,449.72
  4. Step 4: Simplify right side
    689,745.68x = 223,952,352,142.57
  5. Step 5: Solve for x
    x = 223,952,352,142.57/689,745.68
  6. Step 6: Final answer
    x = 324,688.30

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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.