Home / 825.61-1,238.58

Finding the Third Proportional to 825.61 and 1,238.58

Calculator

Solution

The third proportional to 825.61 and 1,238.58 is: 1,858.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    825.61 : 1,238.58 = 1,238.58 : x
  2. Step 2: Convert to fraction form
    825.61/1,238.58 = 1,238.58/x
  3. Step 3: Cross multiply
    825.61x = 1,238.58 × 1,238.58
  4. Step 4: Simplify right side
    825.61x = 1,534,075.77
  5. Step 5: Solve for x
    x = 1,534,075.77/825.61
  6. Step 6: Final answer
    x = 1,858.11

Related Problems

Find third proportional to 412.80 and 619.29
Half scale
Find third proportional to 1,651.22 and 2,477.16
Double scale
Find third proportional to 828 and 1,242
Similar ratio
Find third proportional to 1,238.41 and 1,857.87
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.