Home / 306,789-657,294

Finding the Third Proportional to 306,789 and 657,294

Calculator

Solution

The third proportional to 306,789 and 657,294 is: 1,408,249.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,789 : 657,294 = 657,294 : x
  2. Step 2: Convert to fraction form
    306,789/657,294 = 657,294/x
  3. Step 3: Cross multiply
    306,789x = 657,294 × 657,294
  4. Step 4: Simplify right side
    306,789x = 432,035,402,436
  5. Step 5: Solve for x
    x = 432,035,402,436/306,789
  6. Step 6: Final answer
    x = 1,408,249.33

Related Problems

Find third proportional to 153,394.50 and 328,647
Half scale
Find third proportional to 613,578 and 1,314,588
Double scale
Find third proportional to 306,791 and 657,298
Similar ratio
Find third proportional to 460,183.50 and 985,941
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.