Home / 260,523-389,691

Finding the Third Proportional to 260,523 and 389,691

Calculator

Solution

The third proportional to 260,523 and 389,691 is: 582,900.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,523 : 389,691 = 389,691 : x
  2. Step 2: Convert to fraction form
    260,523/389,691 = 389,691/x
  3. Step 3: Cross multiply
    260,523x = 389,691 × 389,691
  4. Step 4: Simplify right side
    260,523x = 151,859,075,481
  5. Step 5: Solve for x
    x = 151,859,075,481/260,523
  6. Step 6: Final answer
    x = 582,900.84

Related Problems

Find third proportional to 130,261.50 and 194,845.50
Half scale
Find third proportional to 521,046 and 779,382
Double scale
Find third proportional to 260,525 and 389,694
Similar ratio
Find third proportional to 390,784.50 and 584,536.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.