Home / 315,846-690,738

Finding the Third Proportional to 315,846 and 690,738

Calculator

Solution

The third proportional to 315,846 and 690,738 is: 1,510,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,846 : 690,738 = 690,738 : x
  2. Step 2: Convert to fraction form
    315,846/690,738 = 690,738/x
  3. Step 3: Cross multiply
    315,846x = 690,738 × 690,738
  4. Step 4: Simplify right side
    315,846x = 477,118,984,644
  5. Step 5: Solve for x
    x = 477,118,984,644/315,846
  6. Step 6: Final answer
    x = 1,510,606.39

Related Problems

Find third proportional to 157,923 and 345,369
Half scale
Find third proportional to 631,692 and 1,381,476
Double scale
Find third proportional to 315,848 and 690,742
Similar ratio
Find third proportional to 473,769 and 1,036,107
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.