Home / 320,642-616,708

Finding the Third Proportional to 320,642 and 616,708

Calculator

Solution

The third proportional to 320,642 and 616,708 is: 1,186,147.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,642 : 616,708 = 616,708 : x
  2. Step 2: Convert to fraction form
    320,642/616,708 = 616,708/x
  3. Step 3: Cross multiply
    320,642x = 616,708 × 616,708
  4. Step 4: Simplify right side
    320,642x = 380,328,757,264
  5. Step 5: Solve for x
    x = 380,328,757,264/320,642
  6. Step 6: Final answer
    x = 1,186,147.66

Related Problems

Find third proportional to 160,321 and 308,354
Half scale
Find third proportional to 641,284 and 1,233,416
Double scale
Find third proportional to 320,644 and 616,712
Similar ratio
Find third proportional to 480,963 and 925,062
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.