Home / 456-609.75

Finding the Third Proportional to 456 and 609.75

Calculator

Solution

The third proportional to 456 and 609.75 is: 815.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    456 : 609.75 = 609.75 : x
  2. Step 2: Convert to fraction form
    456/609.75 = 609.75/x
  3. Step 3: Cross multiply
    456x = 609.75 × 609.75
  4. Step 4: Simplify right side
    456x = 371,795.06
  5. Step 5: Solve for x
    x = 371,795.06/456
  6. Step 6: Final answer
    x = 815.34

Related Problems

Find third proportional to 228 and 304.88
Half scale
Find third proportional to 912 and 1,219.50
Double scale
Find third proportional to 458 and 612
Similar ratio
Find third proportional to 684 and 914.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.