Home / 298,638-649,764

Finding the Third Proportional to 298,638 and 649,764

Calculator

Solution

The third proportional to 298,638 and 649,764 is: 1,413,729.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,638 : 649,764 = 649,764 : x
  2. Step 2: Convert to fraction form
    298,638/649,764 = 649,764/x
  3. Step 3: Cross multiply
    298,638x = 649,764 × 649,764
  4. Step 4: Simplify right side
    298,638x = 422,193,255,696
  5. Step 5: Solve for x
    x = 422,193,255,696/298,638
  6. Step 6: Final answer
    x = 1,413,729.18

Related Problems

Find third proportional to 149,319 and 324,882
Half scale
Find third proportional to 597,276 and 1,299,528
Double scale
Find third proportional to 298,640 and 649,768
Similar ratio
Find third proportional to 447,957 and 974,646
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.