Home / 287,885-608,989

Finding the Third Proportional to 287,885 and 608,989

Calculator

Solution

The third proportional to 287,885 and 608,989 is: 1,288,249.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,885 : 608,989 = 608,989 : x
  2. Step 2: Convert to fraction form
    287,885/608,989 = 608,989/x
  3. Step 3: Cross multiply
    287,885x = 608,989 × 608,989
  4. Step 4: Simplify right side
    287,885x = 370,867,602,121
  5. Step 5: Solve for x
    x = 370,867,602,121/287,885
  6. Step 6: Final answer
    x = 1,288,249.13

Related Problems

Find third proportional to 143,942.50 and 304,494.50
Half scale
Find third proportional to 575,770 and 1,217,978
Double scale
Find third proportional to 287,887 and 608,993
Similar ratio
Find third proportional to 431,827.50 and 913,483.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.