Home / 445,041-689,550

Finding the Third Proportional to 445,041 and 689,550

Calculator

Solution

The third proportional to 445,041 and 689,550 is: 1,068,394.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,041 : 689,550 = 689,550 : x
  2. Step 2: Convert to fraction form
    445,041/689,550 = 689,550/x
  3. Step 3: Cross multiply
    445,041x = 689,550 × 689,550
  4. Step 4: Simplify right side
    445,041x = 475,479,202,500
  5. Step 5: Solve for x
    x = 475,479,202,500/445,041
  6. Step 6: Final answer
    x = 1,068,394.15

Related Problems

Find third proportional to 222,520.50 and 344,775
Half scale
Find third proportional to 890,082 and 1,379,100
Double scale
Find third proportional to 445,043 and 689,553
Similar ratio
Find third proportional to 667,561.50 and 1,034,325
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.