Home / 988,305-2,157,867

Finding the Third Proportional to 988,305 and 2,157,867

Calculator

Solution

The third proportional to 988,305 and 2,157,867 is: 4,711,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,305 : 2,157,867 = 2,157,867 : x
  2. Step 2: Convert to fraction form
    988,305/2,157,867 = 2,157,867/x
  3. Step 3: Cross multiply
    988,305x = 2,157,867 × 2,157,867
  4. Step 4: Simplify right side
    988,305x = 4,656,389,989,689
  5. Step 5: Solve for x
    x = 4,656,389,989,689/988,305
  6. Step 6: Final answer
    x = 4,711,490.88

Related Problems

Find third proportional to 494,152.50 and 1,078,933.50
Half scale
Find third proportional to 1,976,610 and 4,315,734
Double scale
Find third proportional to 988,307 and 2,157,871
Similar ratio
Find third proportional to 1,482,457.50 and 3,236,800.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.