Home / 379,880-812,464

Finding the Third Proportional to 379,880 and 812,464

Calculator

Solution

The third proportional to 379,880 and 812,464 is: 1,737,648.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,880 : 812,464 = 812,464 : x
  2. Step 2: Convert to fraction form
    379,880/812,464 = 812,464/x
  3. Step 3: Cross multiply
    379,880x = 812,464 × 812,464
  4. Step 4: Simplify right side
    379,880x = 660,097,751,296
  5. Step 5: Solve for x
    x = 660,097,751,296/379,880
  6. Step 6: Final answer
    x = 1,737,648.08

Related Problems

Find third proportional to 189,940 and 406,232
Half scale
Find third proportional to 759,760 and 1,624,928
Double scale
Find third proportional to 379,882 and 812,468
Similar ratio
Find third proportional to 569,820 and 1,218,696
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.