Home / 521,782-830,015

Finding the Third Proportional to 521,782 and 830,015

Calculator

Solution

The third proportional to 521,782 and 830,015 is: 1,320,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,782 : 830,015 = 830,015 : x
  2. Step 2: Convert to fraction form
    521,782/830,015 = 830,015/x
  3. Step 3: Cross multiply
    521,782x = 830,015 × 830,015
  4. Step 4: Simplify right side
    521,782x = 688,924,900,225
  5. Step 5: Solve for x
    x = 688,924,900,225/521,782
  6. Step 6: Final answer
    x = 1,320,330.90

Related Problems

Find third proportional to 260,891 and 415,007.50
Half scale
Find third proportional to 1,043,564 and 1,660,030
Double scale
Find third proportional to 521,784 and 830,018
Similar ratio
Find third proportional to 782,673 and 1,245,022.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.