Home / 318,202-686,192

Finding the Third Proportional to 318,202 and 686,192

Calculator

Solution

The third proportional to 318,202 and 686,192 is: 1,479,750.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,202 : 686,192 = 686,192 : x
  2. Step 2: Convert to fraction form
    318,202/686,192 = 686,192/x
  3. Step 3: Cross multiply
    318,202x = 686,192 × 686,192
  4. Step 4: Simplify right side
    318,202x = 470,859,460,864
  5. Step 5: Solve for x
    x = 470,859,460,864/318,202
  6. Step 6: Final answer
    x = 1,479,750.16

Related Problems

Find third proportional to 159,101 and 343,096
Half scale
Find third proportional to 636,404 and 1,372,384
Double scale
Find third proportional to 318,204 and 686,196
Similar ratio
Find third proportional to 477,303 and 1,029,288
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.