Home / 307,915-460,644

Finding the Third Proportional to 307,915 and 460,644

Calculator

Solution

The third proportional to 307,915 and 460,644 is: 689,128.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,915 : 460,644 = 460,644 : x
  2. Step 2: Convert to fraction form
    307,915/460,644 = 460,644/x
  3. Step 3: Cross multiply
    307,915x = 460,644 × 460,644
  4. Step 4: Simplify right side
    307,915x = 212,192,894,736
  5. Step 5: Solve for x
    x = 212,192,894,736/307,915
  6. Step 6: Final answer
    x = 689,128.15

Related Problems

Find third proportional to 153,957.50 and 230,322
Half scale
Find third proportional to 615,830 and 921,288
Double scale
Find third proportional to 307,917 and 460,647
Similar ratio
Find third proportional to 461,872.50 and 690,966
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.