Home / 512,390-770,235

Finding the Third Proportional to 512,390 and 770,235

Calculator

Solution

The third proportional to 512,390 and 770,235 is: 1,157,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,390 : 770,235 = 770,235 : x
  2. Step 2: Convert to fraction form
    512,390/770,235 = 770,235/x
  3. Step 3: Cross multiply
    512,390x = 770,235 × 770,235
  4. Step 4: Simplify right side
    512,390x = 593,261,955,225
  5. Step 5: Solve for x
    x = 593,261,955,225/512,390
  6. Step 6: Final answer
    x = 1,157,832.81

Related Problems

Find third proportional to 256,195 and 385,117.50
Half scale
Find third proportional to 1,024,780 and 1,540,470
Double scale
Find third proportional to 512,392 and 770,238
Similar ratio
Find third proportional to 768,585 and 1,155,352.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.