Home / 311,559-677,793

Finding the Third Proportional to 311,559 and 677,793

Calculator

Solution

The third proportional to 311,559 and 677,793 is: 1,474,530.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,559 : 677,793 = 677,793 : x
  2. Step 2: Convert to fraction form
    311,559/677,793 = 677,793/x
  3. Step 3: Cross multiply
    311,559x = 677,793 × 677,793
  4. Step 4: Simplify right side
    311,559x = 459,403,350,849
  5. Step 5: Solve for x
    x = 459,403,350,849/311,559
  6. Step 6: Final answer
    x = 1,474,530.83

Related Problems

Find third proportional to 155,779.50 and 338,896.50
Half scale
Find third proportional to 623,118 and 1,355,586
Double scale
Find third proportional to 311,561 and 677,797
Similar ratio
Find third proportional to 467,338.50 and 1,016,689.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.