Home / 307,542-665,628

Finding the Third Proportional to 307,542 and 665,628

Calculator

Solution

The third proportional to 307,542 and 665,628 is: 1,440,650.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,542 : 665,628 = 665,628 : x
  2. Step 2: Convert to fraction form
    307,542/665,628 = 665,628/x
  3. Step 3: Cross multiply
    307,542x = 665,628 × 665,628
  4. Step 4: Simplify right side
    307,542x = 443,060,634,384
  5. Step 5: Solve for x
    x = 443,060,634,384/307,542
  6. Step 6: Final answer
    x = 1,440,650.82

Related Problems

Find third proportional to 153,771 and 332,814
Half scale
Find third proportional to 615,084 and 1,331,256
Double scale
Find third proportional to 307,544 and 665,632
Similar ratio
Find third proportional to 461,313 and 998,442
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.