Home / 400,974-864,630

Finding the Third Proportional to 400,974 and 864,630

Calculator

Solution

The third proportional to 400,974 and 864,630 is: 1,864,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,974 : 864,630 = 864,630 : x
  2. Step 2: Convert to fraction form
    400,974/864,630 = 864,630/x
  3. Step 3: Cross multiply
    400,974x = 864,630 × 864,630
  4. Step 4: Simplify right side
    400,974x = 747,585,036,900
  5. Step 5: Solve for x
    x = 747,585,036,900/400,974
  6. Step 6: Final answer
    x = 1,864,422.72

Related Problems

Find third proportional to 200,487 and 432,315
Half scale
Find third proportional to 801,948 and 1,729,260
Double scale
Find third proportional to 400,976 and 864,634
Similar ratio
Find third proportional to 601,461 and 1,296,945
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.