Home / 300,027-640,230

Finding the Third Proportional to 300,027 and 640,230

Calculator

Solution

The third proportional to 300,027 and 640,230 is: 1,366,191.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,027 : 640,230 = 640,230 : x
  2. Step 2: Convert to fraction form
    300,027/640,230 = 640,230/x
  3. Step 3: Cross multiply
    300,027x = 640,230 × 640,230
  4. Step 4: Simplify right side
    300,027x = 409,894,452,900
  5. Step 5: Solve for x
    x = 409,894,452,900/300,027
  6. Step 6: Final answer
    x = 1,366,191.89

Related Problems

Find third proportional to 150,013.50 and 320,115
Half scale
Find third proportional to 600,054 and 1,280,460
Double scale
Find third proportional to 300,029 and 640,234
Similar ratio
Find third proportional to 450,040.50 and 960,345
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.