Home / 663,426-999,918

Finding the Third Proportional to 663,426 and 999,918

Calculator

Solution

The third proportional to 663,426 and 999,918 is: 1,507,079.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,426 : 999,918 = 999,918 : x
  2. Step 2: Convert to fraction form
    663,426/999,918 = 999,918/x
  3. Step 3: Cross multiply
    663,426x = 999,918 × 999,918
  4. Step 4: Simplify right side
    663,426x = 999,836,006,724
  5. Step 5: Solve for x
    x = 999,836,006,724/663,426
  6. Step 6: Final answer
    x = 1,507,079.93

Related Problems

Find third proportional to 331,713 and 499,959
Half scale
Find third proportional to 1,326,852 and 1,999,836
Double scale
Find third proportional to 663,428 and 999,921
Similar ratio
Find third proportional to 995,139 and 1,499,877
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.