Home / 309,003-668,550

Finding the Third Proportional to 309,003 and 668,550

Calculator

Solution

The third proportional to 309,003 and 668,550 is: 1,446,455.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,003 : 668,550 = 668,550 : x
  2. Step 2: Convert to fraction form
    309,003/668,550 = 668,550/x
  3. Step 3: Cross multiply
    309,003x = 668,550 × 668,550
  4. Step 4: Simplify right side
    309,003x = 446,959,102,500
  5. Step 5: Solve for x
    x = 446,959,102,500/309,003
  6. Step 6: Final answer
    x = 1,446,455.54

Related Problems

Find third proportional to 154,501.50 and 334,275
Half scale
Find third proportional to 618,006 and 1,337,100
Double scale
Find third proportional to 309,005 and 668,554
Similar ratio
Find third proportional to 463,504.50 and 1,002,825
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.