Home / 390,500-852,604

Finding the Third Proportional to 390,500 and 852,604

Calculator

Solution

The third proportional to 390,500 and 852,604 is: 1,861,545.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,500 : 852,604 = 852,604 : x
  2. Step 2: Convert to fraction form
    390,500/852,604 = 852,604/x
  3. Step 3: Cross multiply
    390,500x = 852,604 × 852,604
  4. Step 4: Simplify right side
    390,500x = 726,933,580,816
  5. Step 5: Solve for x
    x = 726,933,580,816/390,500
  6. Step 6: Final answer
    x = 1,861,545.66

Related Problems

Find third proportional to 195,250 and 426,302
Half scale
Find third proportional to 781,000 and 1,705,208
Double scale
Find third proportional to 390,502 and 852,608
Similar ratio
Find third proportional to 585,750 and 1,278,906
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.