Home / 289,725-426,210

Finding the Third Proportional to 289,725 and 426,210

Calculator

Solution

The third proportional to 289,725 and 426,210 is: 626,990.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,725 : 426,210 = 426,210 : x
  2. Step 2: Convert to fraction form
    289,725/426,210 = 426,210/x
  3. Step 3: Cross multiply
    289,725x = 426,210 × 426,210
  4. Step 4: Simplify right side
    289,725x = 181,654,964,100
  5. Step 5: Solve for x
    x = 181,654,964,100/289,725
  6. Step 6: Final answer
    x = 626,990.99

Related Problems

Find third proportional to 144,862.50 and 213,105
Half scale
Find third proportional to 579,450 and 852,420
Double scale
Find third proportional to 289,727 and 426,213
Similar ratio
Find third proportional to 434,587.50 and 639,315
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.