Home / 380,564-836,458

Finding the Third Proportional to 380,564 and 836,458

Calculator

Solution

The third proportional to 380,564 and 836,458 is: 1,838,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,564 : 836,458 = 836,458 : x
  2. Step 2: Convert to fraction form
    380,564/836,458 = 836,458/x
  3. Step 3: Cross multiply
    380,564x = 836,458 × 836,458
  4. Step 4: Simplify right side
    380,564x = 699,661,985,764
  5. Step 5: Solve for x
    x = 699,661,985,764/380,564
  6. Step 6: Final answer
    x = 1,838,487.05

Related Problems

Find third proportional to 190,282 and 418,229
Half scale
Find third proportional to 761,128 and 1,672,916
Double scale
Find third proportional to 380,566 and 836,462
Similar ratio
Find third proportional to 570,846 and 1,254,687
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.