Home / 257,579-560,919

Finding the Third Proportional to 257,579 and 560,919

Calculator

Solution

The third proportional to 257,579 and 560,919 is: 1,221,489.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,579 : 560,919 = 560,919 : x
  2. Step 2: Convert to fraction form
    257,579/560,919 = 560,919/x
  3. Step 3: Cross multiply
    257,579x = 560,919 × 560,919
  4. Step 4: Simplify right side
    257,579x = 314,630,124,561
  5. Step 5: Solve for x
    x = 314,630,124,561/257,579
  6. Step 6: Final answer
    x = 1,221,489.81

Related Problems

Find third proportional to 128,789.50 and 280,459.50
Half scale
Find third proportional to 515,158 and 1,121,838
Double scale
Find third proportional to 257,581 and 560,923
Similar ratio
Find third proportional to 386,368.50 and 841,378.50
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.