Home / 389,682-609,129

Finding the Third Proportional to 389,682 and 609,129

Calculator

Solution

The third proportional to 389,682 and 609,129 is: 952,156.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,682 : 609,129 = 609,129 : x
  2. Step 2: Convert to fraction form
    389,682/609,129 = 609,129/x
  3. Step 3: Cross multiply
    389,682x = 609,129 × 609,129
  4. Step 4: Simplify right side
    389,682x = 371,038,138,641
  5. Step 5: Solve for x
    x = 371,038,138,641/389,682
  6. Step 6: Final answer
    x = 952,156.22

Related Problems

Find third proportional to 194,841 and 304,564.50
Half scale
Find third proportional to 779,364 and 1,218,258
Double scale
Find third proportional to 389,684 and 609,132
Similar ratio
Find third proportional to 584,523 and 913,693.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.