Home / 438,435.75-698,175

Finding the Third Proportional to 438,435.75 and 698,175

Calculator

Solution

The third proportional to 438,435.75 and 698,175 is: 1,111,789.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,435.75 : 698,175 = 698,175 : x
  2. Step 2: Convert to fraction form
    438,435.75/698,175 = 698,175/x
  3. Step 3: Cross multiply
    438,435.75x = 698,175 × 698,175
  4. Step 4: Simplify right side
    438,435.75x = 487,448,330,625
  5. Step 5: Solve for x
    x = 487,448,330,625/438,435.75
  6. Step 6: Final answer
    x = 1,111,789.65

Related Problems

Find third proportional to 219,217.88 and 349,087.50
Half scale
Find third proportional to 876,871.50 and 1,396,350
Double scale
Find third proportional to 438,438 and 698,178
Similar ratio
Find third proportional to 657,653.63 and 1,047,262.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.