Home / 311,665-673,172

Finding the Third Proportional to 311,665 and 673,172

Calculator

Solution

The third proportional to 311,665 and 673,172 is: 1,453,998.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,665 : 673,172 = 673,172 : x
  2. Step 2: Convert to fraction form
    311,665/673,172 = 673,172/x
  3. Step 3: Cross multiply
    311,665x = 673,172 × 673,172
  4. Step 4: Simplify right side
    311,665x = 453,160,541,584
  5. Step 5: Solve for x
    x = 453,160,541,584/311,665
  6. Step 6: Final answer
    x = 1,453,998.82

Related Problems

Find third proportional to 155,832.50 and 336,586
Half scale
Find third proportional to 623,330 and 1,346,344
Double scale
Find third proportional to 311,667 and 673,176
Similar ratio
Find third proportional to 467,497.50 and 1,009,758
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.