Home / 316,030-691,180

Finding the Third Proportional to 316,030 and 691,180

Calculator

Solution

The third proportional to 316,030 and 691,180 is: 1,511,659.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,030 : 691,180 = 691,180 : x
  2. Step 2: Convert to fraction form
    316,030/691,180 = 691,180/x
  3. Step 3: Cross multiply
    316,030x = 691,180 × 691,180
  4. Step 4: Simplify right side
    316,030x = 477,729,792,400
  5. Step 5: Solve for x
    x = 477,729,792,400/316,030
  6. Step 6: Final answer
    x = 1,511,659.63

Related Problems

Find third proportional to 158,015 and 345,590
Half scale
Find third proportional to 632,060 and 1,382,360
Double scale
Find third proportional to 316,032 and 691,184
Similar ratio
Find third proportional to 474,045 and 1,036,770
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.