Home / 580.50-634.92

Finding the Third Proportional to 580.50 and 634.92

Calculator

Solution

The third proportional to 580.50 and 634.92 is: 694.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.50 : 634.92 = 634.92 : x
  2. Step 2: Convert to fraction form
    580.50/634.92 = 634.92/x
  3. Step 3: Cross multiply
    580.50x = 634.92 × 634.92
  4. Step 4: Simplify right side
    580.50x = 403,125.79
  5. Step 5: Solve for x
    x = 403,125.79/580.50
  6. Step 6: Final answer
    x = 694.45

Related Problems

Find third proportional to 290.25 and 317.46
Half scale
Find third proportional to 1,161 and 1,269.84
Double scale
Find third proportional to 583 and 637
Similar ratio
Find third proportional to 870.75 and 952.38
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.