Home / 739-842.50

Finding the Third Proportional to 739 and 842.50

Calculator

Solution

The third proportional to 739 and 842.50 is: 960.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    739 : 842.50 = 842.50 : x
  2. Step 2: Convert to fraction form
    739/842.50 = 842.50/x
  3. Step 3: Cross multiply
    739x = 842.50 × 842.50
  4. Step 4: Simplify right side
    739x = 709,806.25
  5. Step 5: Solve for x
    x = 709,806.25/739
  6. Step 6: Final answer
    x = 960.50

Related Problems

Find third proportional to 369.50 and 421.25
Half scale
Find third proportional to 1,478 and 1,685
Double scale
Find third proportional to 741 and 845
Similar ratio
Find third proportional to 1,108.50 and 1,263.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.