Home / 643,072-945,366

Finding the Third Proportional to 643,072 and 945,366

Calculator

Solution

The third proportional to 643,072 and 945,366 is: 1,389,761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,072 : 945,366 = 945,366 : x
  2. Step 2: Convert to fraction form
    643,072/945,366 = 945,366/x
  3. Step 3: Cross multiply
    643,072x = 945,366 × 945,366
  4. Step 4: Simplify right side
    643,072x = 893,716,873,956
  5. Step 5: Solve for x
    x = 893,716,873,956/643,072
  6. Step 6: Final answer
    x = 1,389,761.76

Related Problems

Find third proportional to 321,536 and 472,683
Half scale
Find third proportional to 1,286,144 and 1,890,732
Double scale
Find third proportional to 643,074 and 945,369
Similar ratio
Find third proportional to 964,608 and 1,418,049
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.