Home / 387,375-843,342

Finding the Third Proportional to 387,375 and 843,342

Calculator

Solution

The third proportional to 387,375 and 843,342 is: 1,836,013.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,375 : 843,342 = 843,342 : x
  2. Step 2: Convert to fraction form
    387,375/843,342 = 843,342/x
  3. Step 3: Cross multiply
    387,375x = 843,342 × 843,342
  4. Step 4: Simplify right side
    387,375x = 711,225,728,964
  5. Step 5: Solve for x
    x = 711,225,728,964/387,375
  6. Step 6: Final answer
    x = 1,836,013.50

Related Problems

Find third proportional to 193,687.50 and 421,671
Half scale
Find third proportional to 774,750 and 1,686,684
Double scale
Find third proportional to 387,377 and 843,346
Similar ratio
Find third proportional to 581,062.50 and 1,265,013
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.