Home / 318,098-686,016

Finding the Third Proportional to 318,098 and 686,016

Calculator

Solution

The third proportional to 318,098 and 686,016 is: 1,479,474.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,098 : 686,016 = 686,016 : x
  2. Step 2: Convert to fraction form
    318,098/686,016 = 686,016/x
  3. Step 3: Cross multiply
    318,098x = 686,016 × 686,016
  4. Step 4: Simplify right side
    318,098x = 470,617,952,256
  5. Step 5: Solve for x
    x = 470,617,952,256/318,098
  6. Step 6: Final answer
    x = 1,479,474.73

Related Problems

Find third proportional to 159,049 and 343,008
Half scale
Find third proportional to 636,196 and 1,372,032
Double scale
Find third proportional to 318,100 and 686,020
Similar ratio
Find third proportional to 477,147 and 1,029,024
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.