Home / 427,147-618,687

Finding the Third Proportional to 427,147 and 618,687

Calculator

Solution

The third proportional to 427,147 and 618,687 is: 896,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,147 : 618,687 = 618,687 : x
  2. Step 2: Convert to fraction form
    427,147/618,687 = 618,687/x
  3. Step 3: Cross multiply
    427,147x = 618,687 × 618,687
  4. Step 4: Simplify right side
    427,147x = 382,773,603,969
  5. Step 5: Solve for x
    x = 382,773,603,969/427,147
  6. Step 6: Final answer
    x = 896,116.80

Related Problems

Find third proportional to 213,573.50 and 309,343.50
Half scale
Find third proportional to 854,294 and 1,237,374
Double scale
Find third proportional to 427,149 and 618,690
Similar ratio
Find third proportional to 640,720.50 and 928,030.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.