Home / 402,120-837,315

Finding the Third Proportional to 402,120 and 837,315

Calculator

Solution

The third proportional to 402,120 and 837,315 is: 1,743,500.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,120 : 837,315 = 837,315 : x
  2. Step 2: Convert to fraction form
    402,120/837,315 = 837,315/x
  3. Step 3: Cross multiply
    402,120x = 837,315 × 837,315
  4. Step 4: Simplify right side
    402,120x = 701,096,409,225
  5. Step 5: Solve for x
    x = 701,096,409,225/402,120
  6. Step 6: Final answer
    x = 1,743,500.47

Related Problems

Find third proportional to 201,060 and 418,657.50
Half scale
Find third proportional to 804,240 and 1,674,630
Double scale
Find third proportional to 402,122 and 837,319
Similar ratio
Find third proportional to 603,180 and 1,255,972.50
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.