Home / 319,874-688,956

Finding the Third Proportional to 319,874 and 688,956

Calculator

Solution

The third proportional to 319,874 and 688,956 is: 1,483,897.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,874 : 688,956 = 688,956 : x
  2. Step 2: Convert to fraction form
    319,874/688,956 = 688,956/x
  3. Step 3: Cross multiply
    319,874x = 688,956 × 688,956
  4. Step 4: Simplify right side
    319,874x = 474,660,369,936
  5. Step 5: Solve for x
    x = 474,660,369,936/319,874
  6. Step 6: Final answer
    x = 1,483,897.94

Related Problems

Find third proportional to 159,937 and 344,478
Half scale
Find third proportional to 639,748 and 1,377,912
Double scale
Find third proportional to 319,876 and 688,960
Similar ratio
Find third proportional to 479,811 and 1,033,434
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.