Home / 266,786-412,803

Finding the Third Proportional to 266,786 and 412,803

Calculator

Solution

The third proportional to 266,786 and 412,803 is: 638,737.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,786 : 412,803 = 412,803 : x
  2. Step 2: Convert to fraction form
    266,786/412,803 = 412,803/x
  3. Step 3: Cross multiply
    266,786x = 412,803 × 412,803
  4. Step 4: Simplify right side
    266,786x = 170,406,316,809
  5. Step 5: Solve for x
    x = 170,406,316,809/266,786
  6. Step 6: Final answer
    x = 638,737.85

Related Problems

Find third proportional to 133,393 and 206,401.50
Half scale
Find third proportional to 533,572 and 825,606
Double scale
Find third proportional to 266,788 and 412,806
Similar ratio
Find third proportional to 400,179 and 619,204.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.