Home / 358,914-521,667

Finding the Third Proportional to 358,914 and 521,667

Calculator

Solution

The third proportional to 358,914 and 521,667 is: 758,221.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,914 : 521,667 = 521,667 : x
  2. Step 2: Convert to fraction form
    358,914/521,667 = 521,667/x
  3. Step 3: Cross multiply
    358,914x = 521,667 × 521,667
  4. Step 4: Simplify right side
    358,914x = 272,136,458,889
  5. Step 5: Solve for x
    x = 272,136,458,889/358,914
  6. Step 6: Final answer
    x = 758,221.91

Related Problems

Find third proportional to 179,457 and 260,833.50
Half scale
Find third proportional to 717,828 and 1,043,334
Double scale
Find third proportional to 358,916 and 521,670
Similar ratio
Find third proportional to 538,371 and 782,500.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.