Home / 402.38-847.99

Finding the Third Proportional to 402.38 and 847.99

Calculator

Solution

The third proportional to 402.38 and 847.99 is: 1,787.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.38 : 847.99 = 847.99 : x
  2. Step 2: Convert to fraction form
    402.38/847.99 = 847.99/x
  3. Step 3: Cross multiply
    402.38x = 847.99 × 847.99
  4. Step 4: Simplify right side
    402.38x = 719,090.75
  5. Step 5: Solve for x
    x = 719,090.75/402.38
  6. Step 6: Final answer
    x = 1,787.12

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.