Home / 445,512-690,462

Finding the Third Proportional to 445,512 and 690,462

Calculator

Solution

The third proportional to 445,512 and 690,462 is: 1,070,089.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,512 : 690,462 = 690,462 : x
  2. Step 2: Convert to fraction form
    445,512/690,462 = 690,462/x
  3. Step 3: Cross multiply
    445,512x = 690,462 × 690,462
  4. Step 4: Simplify right side
    445,512x = 476,737,773,444
  5. Step 5: Solve for x
    x = 476,737,773,444/445,512
  6. Step 6: Final answer
    x = 1,070,089.63

Related Problems

Find third proportional to 222,756 and 345,231
Half scale
Find third proportional to 891,024 and 1,380,924
Double scale
Find third proportional to 445,514 and 690,465
Similar ratio
Find third proportional to 668,268 and 1,035,693
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.