Home / 298,386-649,240

Finding the Third Proportional to 298,386 and 649,240

Calculator

Solution

The third proportional to 298,386 and 649,240 is: 1,412,641.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,386 : 649,240 = 649,240 : x
  2. Step 2: Convert to fraction form
    298,386/649,240 = 649,240/x
  3. Step 3: Cross multiply
    298,386x = 649,240 × 649,240
  4. Step 4: Simplify right side
    298,386x = 421,512,577,600
  5. Step 5: Solve for x
    x = 421,512,577,600/298,386
  6. Step 6: Final answer
    x = 1,412,641.94

Related Problems

Find third proportional to 149,193 and 324,620
Half scale
Find third proportional to 596,772 and 1,298,480
Double scale
Find third proportional to 298,388 and 649,244
Similar ratio
Find third proportional to 447,579 and 973,860
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.