Home / 330,572-678,568

Finding the Third Proportional to 330,572 and 678,568

Calculator

Solution

The third proportional to 330,572 and 678,568 is: 1,392,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,572 : 678,568 = 678,568 : x
  2. Step 2: Convert to fraction form
    330,572/678,568 = 678,568/x
  3. Step 3: Cross multiply
    330,572x = 678,568 × 678,568
  4. Step 4: Simplify right side
    330,572x = 460,454,530,624
  5. Step 5: Solve for x
    x = 460,454,530,624/330,572
  6. Step 6: Final answer
    x = 1,392,902.40

Related Problems

Find third proportional to 165,286 and 339,284
Half scale
Find third proportional to 661,144 and 1,357,136
Double scale
Find third proportional to 330,574 and 678,572
Similar ratio
Find third proportional to 495,858 and 1,017,852
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.