Home / 328,439-710,860

Finding the Third Proportional to 328,439 and 710,860

Calculator

Solution

The third proportional to 328,439 and 710,860 is: 1,538,556.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,439 : 710,860 = 710,860 : x
  2. Step 2: Convert to fraction form
    328,439/710,860 = 710,860/x
  3. Step 3: Cross multiply
    328,439x = 710,860 × 710,860
  4. Step 4: Simplify right side
    328,439x = 505,321,939,600
  5. Step 5: Solve for x
    x = 505,321,939,600/328,439
  6. Step 6: Final answer
    x = 1,538,556.44

Related Problems

Find third proportional to 164,219.50 and 355,430
Half scale
Find third proportional to 656,878 and 1,421,720
Double scale
Find third proportional to 328,441 and 710,864
Similar ratio
Find third proportional to 492,658.50 and 1,066,290
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.