Home / 319,750-690,732

Finding the Third Proportional to 319,750 and 690,732

Calculator

Solution

The third proportional to 319,750 and 690,732 is: 1,492,136.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,750 : 690,732 = 690,732 : x
  2. Step 2: Convert to fraction form
    319,750/690,732 = 690,732/x
  3. Step 3: Cross multiply
    319,750x = 690,732 × 690,732
  4. Step 4: Simplify right side
    319,750x = 477,110,695,824
  5. Step 5: Solve for x
    x = 477,110,695,824/319,750
  6. Step 6: Final answer
    x = 1,492,136.66

Related Problems

Find third proportional to 159,875 and 345,366
Half scale
Find third proportional to 639,500 and 1,381,464
Double scale
Find third proportional to 319,752 and 690,736
Similar ratio
Find third proportional to 479,625 and 1,036,098
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.