Home / 385,867-550,423

Finding the Third Proportional to 385,867 and 550,423

Calculator

Solution

The third proportional to 385,867 and 550,423 is: 785,155.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,867 : 550,423 = 550,423 : x
  2. Step 2: Convert to fraction form
    385,867/550,423 = 550,423/x
  3. Step 3: Cross multiply
    385,867x = 550,423 × 550,423
  4. Step 4: Simplify right side
    385,867x = 302,965,478,929
  5. Step 5: Solve for x
    x = 302,965,478,929/385,867
  6. Step 6: Final answer
    x = 785,155.19

Related Problems

Find third proportional to 192,933.50 and 275,211.50
Half scale
Find third proportional to 771,734 and 1,100,846
Double scale
Find third proportional to 385,869 and 550,426
Similar ratio
Find third proportional to 578,800.50 and 825,634.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.