Home / 518.25-784.88

Finding the Third Proportional to 518.25 and 784.88

Calculator

Solution

The third proportional to 518.25 and 784.88 is: 1,188.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    518.25 : 784.88 = 784.88 : x
  2. Step 2: Convert to fraction form
    518.25/784.88 = 784.88/x
  3. Step 3: Cross multiply
    518.25x = 784.88 × 784.88
  4. Step 4: Simplify right side
    518.25x = 616,028.77
  5. Step 5: Solve for x
    x = 616,028.77/518.25
  6. Step 6: Final answer
    x = 1,188.67

Related Problems

Find third proportional to 259.13 and 392.44
Half scale
Find third proportional to 1,036.50 and 1,569.75
Double scale
Find third proportional to 520 and 788
Similar ratio
Find third proportional to 777.38 and 1,177.31
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.