Home / 311,674-662,180

Finding the Third Proportional to 311,674 and 662,180

Calculator

Solution

The third proportional to 311,674 and 662,180 is: 1,406,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,674 : 662,180 = 662,180 : x
  2. Step 2: Convert to fraction form
    311,674/662,180 = 662,180/x
  3. Step 3: Cross multiply
    311,674x = 662,180 × 662,180
  4. Step 4: Simplify right side
    311,674x = 438,482,352,400
  5. Step 5: Solve for x
    x = 438,482,352,400/311,674
  6. Step 6: Final answer
    x = 1,406,862.15

Related Problems

Find third proportional to 155,837 and 331,090
Half scale
Find third proportional to 623,348 and 1,324,360
Double scale
Find third proportional to 311,676 and 662,184
Similar ratio
Find third proportional to 467,511 and 993,270
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.