Home / 307,916-676,312

Finding the Third Proportional to 307,916 and 676,312

Calculator

Solution

The third proportional to 307,916 and 676,312 is: 1,485,463.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,916 : 676,312 = 676,312 : x
  2. Step 2: Convert to fraction form
    307,916/676,312 = 676,312/x
  3. Step 3: Cross multiply
    307,916x = 676,312 × 676,312
  4. Step 4: Simplify right side
    307,916x = 457,397,921,344
  5. Step 5: Solve for x
    x = 457,397,921,344/307,916
  6. Step 6: Final answer
    x = 1,485,463.31

Related Problems

Find third proportional to 153,958 and 338,156
Half scale
Find third proportional to 615,832 and 1,352,624
Double scale
Find third proportional to 307,918 and 676,316
Similar ratio
Find third proportional to 461,874 and 1,014,468
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.