Home / 276,315-439,382

Finding the Third Proportional to 276,315 and 439,382

Calculator

Solution

The third proportional to 276,315 and 439,382 is: 698,682.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,315 : 439,382 = 439,382 : x
  2. Step 2: Convert to fraction form
    276,315/439,382 = 439,382/x
  3. Step 3: Cross multiply
    276,315x = 439,382 × 439,382
  4. Step 4: Simplify right side
    276,315x = 193,056,541,924
  5. Step 5: Solve for x
    x = 193,056,541,924/276,315
  6. Step 6: Final answer
    x = 698,682.81

Related Problems

Find third proportional to 138,157.50 and 219,691
Half scale
Find third proportional to 552,630 and 878,764
Double scale
Find third proportional to 276,317 and 439,385
Similar ratio
Find third proportional to 414,472.50 and 659,073
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.