Home / 438,590-911,655

Finding the Third Proportional to 438,590 and 911,655

Calculator

Solution

The third proportional to 438,590 and 911,655 is: 1,894,969.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,590 : 911,655 = 911,655 : x
  2. Step 2: Convert to fraction form
    438,590/911,655 = 911,655/x
  3. Step 3: Cross multiply
    438,590x = 911,655 × 911,655
  4. Step 4: Simplify right side
    438,590x = 831,114,839,025
  5. Step 5: Solve for x
    x = 831,114,839,025/438,590
  6. Step 6: Final answer
    x = 1,894,969.88

Related Problems

Find third proportional to 219,295 and 455,827.50
Half scale
Find third proportional to 877,180 and 1,823,310
Double scale
Find third proportional to 438,592 and 911,659
Similar ratio
Find third proportional to 657,885 and 1,367,482.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.