Home / 399,736-851,260

Finding the Third Proportional to 399,736 and 851,260

Calculator

Solution

The third proportional to 399,736 and 851,260 is: 1,812,805.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,736 : 851,260 = 851,260 : x
  2. Step 2: Convert to fraction form
    399,736/851,260 = 851,260/x
  3. Step 3: Cross multiply
    399,736x = 851,260 × 851,260
  4. Step 4: Simplify right side
    399,736x = 724,643,587,600
  5. Step 5: Solve for x
    x = 724,643,587,600/399,736
  6. Step 6: Final answer
    x = 1,812,805.42

Related Problems

Find third proportional to 199,868 and 425,630
Half scale
Find third proportional to 799,472 and 1,702,520
Double scale
Find third proportional to 399,738 and 851,264
Similar ratio
Find third proportional to 599,604 and 1,276,890
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.