Home / 319,385-691,366

Finding the Third Proportional to 319,385 and 691,366

Calculator

Solution

The third proportional to 319,385 and 691,366 is: 1,496,585.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,385 : 691,366 = 691,366 : x
  2. Step 2: Convert to fraction form
    319,385/691,366 = 691,366/x
  3. Step 3: Cross multiply
    319,385x = 691,366 × 691,366
  4. Step 4: Simplify right side
    319,385x = 477,986,945,956
  5. Step 5: Solve for x
    x = 477,986,945,956/319,385
  6. Step 6: Final answer
    x = 1,496,585.46

Related Problems

Find third proportional to 159,692.50 and 345,683
Half scale
Find third proportional to 638,770 and 1,382,732
Double scale
Find third proportional to 319,387 and 691,370
Similar ratio
Find third proportional to 479,077.50 and 1,037,049
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.