Home / 820,690-1,282,875

Finding the Third Proportional to 820,690 and 1,282,875

Calculator

Solution

The third proportional to 820,690 and 1,282,875 is: 2,005,347.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,690 : 1,282,875 = 1,282,875 : x
  2. Step 2: Convert to fraction form
    820,690/1,282,875 = 1,282,875/x
  3. Step 3: Cross multiply
    820,690x = 1,282,875 × 1,282,875
  4. Step 4: Simplify right side
    820,690x = 1,645,768,265,625
  5. Step 5: Solve for x
    x = 1,645,768,265,625/820,690
  6. Step 6: Final answer
    x = 2,005,347.04

Related Problems

Find third proportional to 410,345 and 641,437.50
Half scale
Find third proportional to 1,641,380 and 2,565,750
Double scale
Find third proportional to 820,692 and 1,282,878
Similar ratio
Find third proportional to 1,231,035 and 1,924,312.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.