Home / 289,702-432,871

Finding the Third Proportional to 289,702 and 432,871

Calculator

Solution

The third proportional to 289,702 and 432,871 is: 646,793.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,702 : 432,871 = 432,871 : x
  2. Step 2: Convert to fraction form
    289,702/432,871 = 432,871/x
  3. Step 3: Cross multiply
    289,702x = 432,871 × 432,871
  4. Step 4: Simplify right side
    289,702x = 187,377,302,641
  5. Step 5: Solve for x
    x = 187,377,302,641/289,702
  6. Step 6: Final answer
    x = 646,793.27

Related Problems

Find third proportional to 144,851 and 216,435.50
Half scale
Find third proportional to 579,404 and 865,742
Double scale
Find third proportional to 289,704 and 432,874
Similar ratio
Find third proportional to 434,553 and 649,306.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.