Home / 424,482-642,188

Finding the Third Proportional to 424,482 and 642,188

Calculator

Solution

The third proportional to 424,482 and 642,188 is: 971,549.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,482 : 642,188 = 642,188 : x
  2. Step 2: Convert to fraction form
    424,482/642,188 = 642,188/x
  3. Step 3: Cross multiply
    424,482x = 642,188 × 642,188
  4. Step 4: Simplify right side
    424,482x = 412,405,427,344
  5. Step 5: Solve for x
    x = 412,405,427,344/424,482
  6. Step 6: Final answer
    x = 971,549.86

Related Problems

Find third proportional to 212,241 and 321,094
Half scale
Find third proportional to 848,964 and 1,284,376
Double scale
Find third proportional to 424,484 and 642,191
Similar ratio
Find third proportional to 636,723 and 963,282
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.