Home / 451,316-980,320

Finding the Third Proportional to 451,316 and 980,320

Calculator

Solution

The third proportional to 451,316 and 980,320 is: 2,129,388.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,316 : 980,320 = 980,320 : x
  2. Step 2: Convert to fraction form
    451,316/980,320 = 980,320/x
  3. Step 3: Cross multiply
    451,316x = 980,320 × 980,320
  4. Step 4: Simplify right side
    451,316x = 961,027,302,400
  5. Step 5: Solve for x
    x = 961,027,302,400/451,316
  6. Step 6: Final answer
    x = 2,129,388.95

Related Problems

Find third proportional to 225,658 and 490,160
Half scale
Find third proportional to 902,632 and 1,960,640
Double scale
Find third proportional to 451,318 and 980,324
Similar ratio
Find third proportional to 676,974 and 1,470,480
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.