Home / 388,130-617,187

Finding the Third Proportional to 388,130 and 617,187

Calculator

Solution

The third proportional to 388,130 and 617,187 is: 981,423.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,130 : 617,187 = 617,187 : x
  2. Step 2: Convert to fraction form
    388,130/617,187 = 617,187/x
  3. Step 3: Cross multiply
    388,130x = 617,187 × 617,187
  4. Step 4: Simplify right side
    388,130x = 380,919,792,969
  5. Step 5: Solve for x
    x = 380,919,792,969/388,130
  6. Step 6: Final answer
    x = 981,423.22

Related Problems

Find third proportional to 194,065 and 308,593.50
Half scale
Find third proportional to 776,260 and 1,234,374
Double scale
Find third proportional to 388,132 and 617,190
Similar ratio
Find third proportional to 582,195 and 925,780.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.