Home / 379,080-815,285.25

Finding the Third Proportional to 379,080 and 815,285.25

Calculator

Solution

The third proportional to 379,080 and 815,285.25 is: 1,753,429.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,080 : 815,285.25 = 815,285.25 : x
  2. Step 2: Convert to fraction form
    379,080/815,285.25 = 815,285.25/x
  3. Step 3: Cross multiply
    379,080x = 815,285.25 × 815,285.25
  4. Step 4: Simplify right side
    379,080x = 664,690,038,867.56
  5. Step 5: Solve for x
    x = 664,690,038,867.56/379,080
  6. Step 6: Final answer
    x = 1,753,429.46

Related Problems

Find third proportional to 189,540 and 407,642.63
Half scale
Find third proportional to 758,160 and 1,630,570.50
Double scale
Find third proportional to 379,082 and 815,290
Similar ratio
Find third proportional to 568,620 and 1,222,927.88
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.