Home / 658-758.50

Finding the Third Proportional to 658 and 758.50

Calculator

Solution

The third proportional to 658 and 758.50 is: 874.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    658 : 758.50 = 758.50 : x
  2. Step 2: Convert to fraction form
    658/758.50 = 758.50/x
  3. Step 3: Cross multiply
    658x = 758.50 × 758.50
  4. Step 4: Simplify right side
    658x = 575,322.25
  5. Step 5: Solve for x
    x = 575,322.25/658
  6. Step 6: Final answer
    x = 874.35

Related Problems

Find third proportional to 329 and 379.25
Half scale
Find third proportional to 1,316 and 1,517
Double scale
Find third proportional to 660 and 761
Similar ratio
Find third proportional to 987 and 1,137.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.