Home / 345,648-718,885

Finding the Third Proportional to 345,648 and 718,885

Calculator

Solution

The third proportional to 345,648 and 718,885 is: 1,495,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,648 : 718,885 = 718,885 : x
  2. Step 2: Convert to fraction form
    345,648/718,885 = 718,885/x
  3. Step 3: Cross multiply
    345,648x = 718,885 × 718,885
  4. Step 4: Simplify right side
    345,648x = 516,795,643,225
  5. Step 5: Solve for x
    x = 516,795,643,225/345,648
  6. Step 6: Final answer
    x = 1,495,150.10

Related Problems

Find third proportional to 172,824 and 359,442.50
Half scale
Find third proportional to 691,296 and 1,437,770
Double scale
Find third proportional to 345,650 and 718,889
Similar ratio
Find third proportional to 518,472 and 1,078,327.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.