Home / 297,832-642,320

Finding the Third Proportional to 297,832 and 642,320

Calculator

Solution

The third proportional to 297,832 and 642,320 is: 1,385,260.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,832 : 642,320 = 642,320 : x
  2. Step 2: Convert to fraction form
    297,832/642,320 = 642,320/x
  3. Step 3: Cross multiply
    297,832x = 642,320 × 642,320
  4. Step 4: Simplify right side
    297,832x = 412,574,982,400
  5. Step 5: Solve for x
    x = 412,574,982,400/297,832
  6. Step 6: Final answer
    x = 1,385,260.76

Related Problems

Find third proportional to 148,916 and 321,160
Half scale
Find third proportional to 595,664 and 1,284,640
Double scale
Find third proportional to 297,834 and 642,324
Similar ratio
Find third proportional to 446,748 and 963,480
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.