Home / 279,360-432,477

Finding the Third Proportional to 279,360 and 432,477

Calculator

Solution

The third proportional to 279,360 and 432,477 is: 669,517.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,360 : 432,477 = 432,477 : x
  2. Step 2: Convert to fraction form
    279,360/432,477 = 432,477/x
  3. Step 3: Cross multiply
    279,360x = 432,477 × 432,477
  4. Step 4: Simplify right side
    279,360x = 187,036,355,529
  5. Step 5: Solve for x
    x = 187,036,355,529/279,360
  6. Step 6: Final answer
    x = 669,517.31

Related Problems

Find third proportional to 139,680 and 216,238.50
Half scale
Find third proportional to 558,720 and 864,954
Double scale
Find third proportional to 279,362 and 432,480
Similar ratio
Find third proportional to 419,040 and 648,715.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.