Home / 351,385-770,486

Finding the Third Proportional to 351,385 and 770,486

Calculator

Solution

The third proportional to 351,385 and 770,486 is: 1,689,453.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,385 : 770,486 = 770,486 : x
  2. Step 2: Convert to fraction form
    351,385/770,486 = 770,486/x
  3. Step 3: Cross multiply
    351,385x = 770,486 × 770,486
  4. Step 4: Simplify right side
    351,385x = 593,648,676,196
  5. Step 5: Solve for x
    x = 593,648,676,196/351,385
  6. Step 6: Final answer
    x = 1,689,453.67

Related Problems

Find third proportional to 175,692.50 and 385,243
Half scale
Find third proportional to 702,770 and 1,540,972
Double scale
Find third proportional to 351,387 and 770,490
Similar ratio
Find third proportional to 527,077.50 and 1,155,729
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.