Home / 561,122-870,631

Finding the Third Proportional to 561,122 and 870,631

Calculator

Solution

The third proportional to 561,122 and 870,631 is: 1,350,861.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,122 : 870,631 = 870,631 : x
  2. Step 2: Convert to fraction form
    561,122/870,631 = 870,631/x
  3. Step 3: Cross multiply
    561,122x = 870,631 × 870,631
  4. Step 4: Simplify right side
    561,122x = 757,998,338,161
  5. Step 5: Solve for x
    x = 757,998,338,161/561,122
  6. Step 6: Final answer
    x = 1,350,861.91

Related Problems

Find third proportional to 280,561 and 435,315.50
Half scale
Find third proportional to 1,122,244 and 1,741,262
Double scale
Find third proportional to 561,124 and 870,634
Similar ratio
Find third proportional to 841,683 and 1,305,946.50
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.