Home / 489,330-756,261

Finding the Third Proportional to 489,330 and 756,261

Calculator

Solution

The third proportional to 489,330 and 756,261 is: 1,168,803.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,330 : 756,261 = 756,261 : x
  2. Step 2: Convert to fraction form
    489,330/756,261 = 756,261/x
  3. Step 3: Cross multiply
    489,330x = 756,261 × 756,261
  4. Step 4: Simplify right side
    489,330x = 571,930,700,121
  5. Step 5: Solve for x
    x = 571,930,700,121/489,330
  6. Step 6: Final answer
    x = 1,168,803.67

Related Problems

Find third proportional to 244,665 and 378,130.50
Half scale
Find third proportional to 978,660 and 1,512,522
Double scale
Find third proportional to 489,332 and 756,264
Similar ratio
Find third proportional to 733,995 and 1,134,391.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.