Home / 331,011-511,487.50

Finding the Third Proportional to 331,011 and 511,487.50

Calculator

Solution

The third proportional to 331,011 and 511,487.50 is: 790,364.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,011 : 511,487.50 = 511,487.50 : x
  2. Step 2: Convert to fraction form
    331,011/511,487.50 = 511,487.50/x
  3. Step 3: Cross multiply
    331,011x = 511,487.50 × 511,487.50
  4. Step 4: Simplify right side
    331,011x = 261,619,462,656.25
  5. Step 5: Solve for x
    x = 261,619,462,656.25/331,011
  6. Step 6: Final answer
    x = 790,364.86

Related Problems

Find third proportional to 165,505.50 and 255,743.75
Half scale
Find third proportional to 662,022 and 1,022,975
Double scale
Find third proportional to 331,013 and 511,491
Similar ratio
Find third proportional to 496,516.50 and 767,231.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.