Home / 399,006-559,885

Finding the Third Proportional to 399,006 and 559,885

Calculator

Solution

The third proportional to 399,006 and 559,885 is: 785,630.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,006 : 559,885 = 559,885 : x
  2. Step 2: Convert to fraction form
    399,006/559,885 = 559,885/x
  3. Step 3: Cross multiply
    399,006x = 559,885 × 559,885
  4. Step 4: Simplify right side
    399,006x = 313,471,213,225
  5. Step 5: Solve for x
    x = 313,471,213,225/399,006
  6. Step 6: Final answer
    x = 785,630.32

Related Problems

Find third proportional to 199,503 and 279,942.50
Half scale
Find third proportional to 798,012 and 1,119,770
Double scale
Find third proportional to 399,008 and 559,888
Similar ratio
Find third proportional to 598,509 and 839,827.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.