Home / 321,906-692,900

Finding the Third Proportional to 321,906 and 692,900

Calculator

Solution

The third proportional to 321,906 and 692,900 is: 1,491,461.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,906 : 692,900 = 692,900 : x
  2. Step 2: Convert to fraction form
    321,906/692,900 = 692,900/x
  3. Step 3: Cross multiply
    321,906x = 692,900 × 692,900
  4. Step 4: Simplify right side
    321,906x = 480,110,410,000
  5. Step 5: Solve for x
    x = 480,110,410,000/321,906
  6. Step 6: Final answer
    x = 1,491,461.51

Related Problems

Find third proportional to 160,953 and 346,450
Half scale
Find third proportional to 643,812 and 1,385,800
Double scale
Find third proportional to 321,908 and 692,904
Similar ratio
Find third proportional to 482,859 and 1,039,350
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.