Home / 549,009-820,281

Finding the Third Proportional to 549,009 and 820,281

Calculator

Solution

The third proportional to 549,009 and 820,281 is: 1,225,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,009 : 820,281 = 820,281 : x
  2. Step 2: Convert to fraction form
    549,009/820,281 = 820,281/x
  3. Step 3: Cross multiply
    549,009x = 820,281 × 820,281
  4. Step 4: Simplify right side
    549,009x = 672,860,918,961
  5. Step 5: Solve for x
    x = 672,860,918,961/549,009
  6. Step 6: Final answer
    x = 1,225,591.78

Related Problems

Find third proportional to 274,504.50 and 410,140.50
Half scale
Find third proportional to 1,098,018 and 1,640,562
Double scale
Find third proportional to 549,011 and 820,284
Similar ratio
Find third proportional to 823,513.50 and 1,230,421.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.