Home / 399,638-855,958

Finding the Third Proportional to 399,638 and 855,958

Calculator

Solution

The third proportional to 399,638 and 855,958 is: 1,833,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,638 : 855,958 = 855,958 : x
  2. Step 2: Convert to fraction form
    399,638/855,958 = 855,958/x
  3. Step 3: Cross multiply
    399,638x = 855,958 × 855,958
  4. Step 4: Simplify right side
    399,638x = 732,664,097,764
  5. Step 5: Solve for x
    x = 732,664,097,764/399,638
  6. Step 6: Final answer
    x = 1,833,319.40

Related Problems

Find third proportional to 199,819 and 427,979
Half scale
Find third proportional to 799,276 and 1,711,916
Double scale
Find third proportional to 399,640 and 855,962
Similar ratio
Find third proportional to 599,457 and 1,283,937
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.