Home / 356,841-521,865

Finding the Third Proportional to 356,841 and 521,865

Calculator

Solution

The third proportional to 356,841 and 521,865 is: 763,205.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,841 : 521,865 = 521,865 : x
  2. Step 2: Convert to fraction form
    356,841/521,865 = 521,865/x
  3. Step 3: Cross multiply
    356,841x = 521,865 × 521,865
  4. Step 4: Simplify right side
    356,841x = 272,343,078,225
  5. Step 5: Solve for x
    x = 272,343,078,225/356,841
  6. Step 6: Final answer
    x = 763,205.68

Related Problems

Find third proportional to 178,420.50 and 260,932.50
Half scale
Find third proportional to 713,682 and 1,043,730
Double scale
Find third proportional to 356,843 and 521,868
Similar ratio
Find third proportional to 535,261.50 and 782,797.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.