Home / 299,640-649,176

Finding the Third Proportional to 299,640 and 649,176

Calculator

Solution

The third proportional to 299,640 and 649,176 is: 1,406,452.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,640 : 649,176 = 649,176 : x
  2. Step 2: Convert to fraction form
    299,640/649,176 = 649,176/x
  3. Step 3: Cross multiply
    299,640x = 649,176 × 649,176
  4. Step 4: Simplify right side
    299,640x = 421,429,478,976
  5. Step 5: Solve for x
    x = 421,429,478,976/299,640
  6. Step 6: Final answer
    x = 1,406,452.67

Related Problems

Find third proportional to 149,820 and 324,588
Half scale
Find third proportional to 599,280 and 1,298,352
Double scale
Find third proportional to 299,642 and 649,180
Similar ratio
Find third proportional to 449,460 and 973,764
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.