Home / 421.50-882

Finding the Third Proportional to 421.50 and 882

Calculator

Solution

The third proportional to 421.50 and 882 is: 1,845.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    421.50 : 882 = 882 : x
  2. Step 2: Convert to fraction form
    421.50/882 = 882/x
  3. Step 3: Cross multiply
    421.50x = 882 × 882
  4. Step 4: Simplify right side
    421.50x = 777,924
  5. Step 5: Solve for x
    x = 777,924/421.50
  6. Step 6: Final answer
    x = 1,845.61

Related Problems

Find third proportional to 210.75 and 441
Half scale
Find third proportional to 843 and 1,764
Double scale
Find third proportional to 424 and 886
Similar ratio
Find third proportional to 632.25 and 1,323
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.