Home / 446,478-690,453

Finding the Third Proportional to 446,478 and 690,453

Calculator

Solution

The third proportional to 446,478 and 690,453 is: 1,067,746.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,478 : 690,453 = 690,453 : x
  2. Step 2: Convert to fraction form
    446,478/690,453 = 690,453/x
  3. Step 3: Cross multiply
    446,478x = 690,453 × 690,453
  4. Step 4: Simplify right side
    446,478x = 476,725,345,209
  5. Step 5: Solve for x
    x = 476,725,345,209/446,478
  6. Step 6: Final answer
    x = 1,067,746.55

Related Problems

Find third proportional to 223,239 and 345,226.50
Half scale
Find third proportional to 892,956 and 1,380,906
Double scale
Find third proportional to 446,480 and 690,456
Similar ratio
Find third proportional to 669,717 and 1,035,679.50
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.