Home / 424,472-642,175

Finding the Third Proportional to 424,472 and 642,175

Calculator

Solution

The third proportional to 424,472 and 642,175 is: 971,533.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,472 : 642,175 = 642,175 : x
  2. Step 2: Convert to fraction form
    424,472/642,175 = 642,175/x
  3. Step 3: Cross multiply
    424,472x = 642,175 × 642,175
  4. Step 4: Simplify right side
    424,472x = 412,388,730,625
  5. Step 5: Solve for x
    x = 412,388,730,625/424,472
  6. Step 6: Final answer
    x = 971,533.41

Related Problems

Find third proportional to 212,236 and 321,087.50
Half scale
Find third proportional to 848,944 and 1,284,350
Double scale
Find third proportional to 424,474 and 642,178
Similar ratio
Find third proportional to 636,708 and 963,262.50
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.