Home / 296,940-647,172

Finding the Third Proportional to 296,940 and 647,172

Calculator

Solution

The third proportional to 296,940 and 647,172 is: 1,410,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,940 : 647,172 = 647,172 : x
  2. Step 2: Convert to fraction form
    296,940/647,172 = 647,172/x
  3. Step 3: Cross multiply
    296,940x = 647,172 × 647,172
  4. Step 4: Simplify right side
    296,940x = 418,831,597,584
  5. Step 5: Solve for x
    x = 418,831,597,584/296,940
  6. Step 6: Final answer
    x = 1,410,492.35

Related Problems

Find third proportional to 148,470 and 323,586
Half scale
Find third proportional to 593,880 and 1,294,344
Double scale
Find third proportional to 296,942 and 647,176
Similar ratio
Find third proportional to 445,410 and 970,758
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.