Home / 284,611.50-428,787

Finding the Third Proportional to 284,611.50 and 428,787

Calculator

Solution

The third proportional to 284,611.50 and 428,787 is: 645,997.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,611.50 : 428,787 = 428,787 : x
  2. Step 2: Convert to fraction form
    284,611.50/428,787 = 428,787/x
  3. Step 3: Cross multiply
    284,611.50x = 428,787 × 428,787
  4. Step 4: Simplify right side
    284,611.50x = 183,858,291,369
  5. Step 5: Solve for x
    x = 183,858,291,369/284,611.50
  6. Step 6: Final answer
    x = 645,997.41

Related Problems

Find third proportional to 142,305.75 and 214,393.50
Half scale
Find third proportional to 569,223 and 857,574
Double scale
Find third proportional to 284,614 and 428,790
Similar ratio
Find third proportional to 426,917.25 and 643,180.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.