Home / 505,428-788,550

Finding the Third Proportional to 505,428 and 788,550

Calculator

Solution

The third proportional to 505,428 and 788,550 is: 1,230,266.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,428 : 788,550 = 788,550 : x
  2. Step 2: Convert to fraction form
    505,428/788,550 = 788,550/x
  3. Step 3: Cross multiply
    505,428x = 788,550 × 788,550
  4. Step 4: Simplify right side
    505,428x = 621,811,102,500
  5. Step 5: Solve for x
    x = 621,811,102,500/505,428
  6. Step 6: Final answer
    x = 1,230,266.43

Related Problems

Find third proportional to 252,714 and 394,275
Half scale
Find third proportional to 1,010,856 and 1,577,100
Double scale
Find third proportional to 505,430 and 788,553
Similar ratio
Find third proportional to 758,142 and 1,182,825
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.