Home / 607-978.50

Finding the Third Proportional to 607 and 978.50

Calculator

Solution

The third proportional to 607 and 978.50 is: 1,577.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    607 : 978.50 = 978.50 : x
  2. Step 2: Convert to fraction form
    607/978.50 = 978.50/x
  3. Step 3: Cross multiply
    607x = 978.50 × 978.50
  4. Step 4: Simplify right side
    607x = 957,462.25
  5. Step 5: Solve for x
    x = 957,462.25/607
  6. Step 6: Final answer
    x = 1,577.37

Related Problems

Find third proportional to 303.50 and 489.25
Half scale
Find third proportional to 1,214 and 1,957
Double scale
Find third proportional to 609 and 982
Similar ratio
Find third proportional to 910.50 and 1,467.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.