Home / 321,768-706,980

Finding the Third Proportional to 321,768 and 706,980

Calculator

Solution

The third proportional to 321,768 and 706,980 is: 1,553,357.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,768 : 706,980 = 706,980 : x
  2. Step 2: Convert to fraction form
    321,768/706,980 = 706,980/x
  3. Step 3: Cross multiply
    321,768x = 706,980 × 706,980
  4. Step 4: Simplify right side
    321,768x = 499,820,720,400
  5. Step 5: Solve for x
    x = 499,820,720,400/321,768
  6. Step 6: Final answer
    x = 1,553,357.45

Related Problems

Find third proportional to 160,884 and 353,490
Half scale
Find third proportional to 643,536 and 1,413,960
Double scale
Find third proportional to 321,770 and 706,984
Similar ratio
Find third proportional to 482,652 and 1,060,470
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.