Home / 307,852-676,220

Finding the Third Proportional to 307,852 and 676,220

Calculator

Solution

The third proportional to 307,852 and 676,220 is: 1,485,367.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,852 : 676,220 = 676,220 : x
  2. Step 2: Convert to fraction form
    307,852/676,220 = 676,220/x
  3. Step 3: Cross multiply
    307,852x = 676,220 × 676,220
  4. Step 4: Simplify right side
    307,852x = 457,273,488,400
  5. Step 5: Solve for x
    x = 457,273,488,400/307,852
  6. Step 6: Final answer
    x = 1,485,367.93

Related Problems

Find third proportional to 153,926 and 338,110
Half scale
Find third proportional to 615,704 and 1,352,440
Double scale
Find third proportional to 307,854 and 676,224
Similar ratio
Find third proportional to 461,778 and 1,014,330
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.