Home / 317,520-486,393

Finding the Third Proportional to 317,520 and 486,393

Calculator

Solution

The third proportional to 317,520 and 486,393 is: 745,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,520 : 486,393 = 486,393 : x
  2. Step 2: Convert to fraction form
    317,520/486,393 = 486,393/x
  3. Step 3: Cross multiply
    317,520x = 486,393 × 486,393
  4. Step 4: Simplify right side
    317,520x = 236,578,150,449
  5. Step 5: Solve for x
    x = 236,578,150,449/317,520
  6. Step 6: Final answer
    x = 745,081.10

Related Problems

Find third proportional to 158,760 and 243,196.50
Half scale
Find third proportional to 635,040 and 972,786
Double scale
Find third proportional to 317,522 and 486,396
Similar ratio
Find third proportional to 476,280 and 729,589.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.