Home / 429,009-631,119

Finding the Third Proportional to 429,009 and 631,119

Calculator

Solution

The third proportional to 429,009 and 631,119 is: 928,444.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,009 : 631,119 = 631,119 : x
  2. Step 2: Convert to fraction form
    429,009/631,119 = 631,119/x
  3. Step 3: Cross multiply
    429,009x = 631,119 × 631,119
  4. Step 4: Simplify right side
    429,009x = 398,311,192,161
  5. Step 5: Solve for x
    x = 398,311,192,161/429,009
  6. Step 6: Final answer
    x = 928,444.84

Related Problems

Find third proportional to 214,504.50 and 315,559.50
Half scale
Find third proportional to 858,018 and 1,262,238
Double scale
Find third proportional to 429,011 and 631,122
Similar ratio
Find third proportional to 643,513.50 and 946,678.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.