Home / 310,904-669,376

Finding the Third Proportional to 310,904 and 669,376

Calculator

Solution

The third proportional to 310,904 and 669,376 is: 1,441,165.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,904 : 669,376 = 669,376 : x
  2. Step 2: Convert to fraction form
    310,904/669,376 = 669,376/x
  3. Step 3: Cross multiply
    310,904x = 669,376 × 669,376
  4. Step 4: Simplify right side
    310,904x = 448,064,229,376
  5. Step 5: Solve for x
    x = 448,064,229,376/310,904
  6. Step 6: Final answer
    x = 1,441,165.86

Related Problems

Find third proportional to 155,452 and 334,688
Half scale
Find third proportional to 621,808 and 1,338,752
Double scale
Find third proportional to 310,906 and 669,380
Similar ratio
Find third proportional to 466,356 and 1,004,064
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.