Home / 406,772-615,416

Finding the Third Proportional to 406,772 and 615,416

Calculator

Solution

The third proportional to 406,772 and 615,416 is: 931,078.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,772 : 615,416 = 615,416 : x
  2. Step 2: Convert to fraction form
    406,772/615,416 = 615,416/x
  3. Step 3: Cross multiply
    406,772x = 615,416 × 615,416
  4. Step 4: Simplify right side
    406,772x = 378,736,853,056
  5. Step 5: Solve for x
    x = 378,736,853,056/406,772
  6. Step 6: Final answer
    x = 931,078.97

Related Problems

Find third proportional to 203,386 and 307,708
Half scale
Find third proportional to 813,544 and 1,230,832
Double scale
Find third proportional to 406,774 and 615,419
Similar ratio
Find third proportional to 610,158 and 923,124
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.