Home / 260,516-389,680

Finding the Third Proportional to 260,516 and 389,680

Calculator

Solution

The third proportional to 260,516 and 389,680 is: 582,883.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,516 : 389,680 = 389,680 : x
  2. Step 2: Convert to fraction form
    260,516/389,680 = 389,680/x
  3. Step 3: Cross multiply
    260,516x = 389,680 × 389,680
  4. Step 4: Simplify right side
    260,516x = 151,850,502,400
  5. Step 5: Solve for x
    x = 151,850,502,400/260,516
  6. Step 6: Final answer
    x = 582,883.59

Related Problems

Find third proportional to 130,258 and 194,840
Half scale
Find third proportional to 521,032 and 779,360
Double scale
Find third proportional to 260,518 and 389,683
Similar ratio
Find third proportional to 390,774 and 584,520
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.