Home / 640,678-927,968

Finding the Third Proportional to 640,678 and 927,968

Calculator

Solution

The third proportional to 640,678 and 927,968 is: 1,344,083.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,678 : 927,968 = 927,968 : x
  2. Step 2: Convert to fraction form
    640,678/927,968 = 927,968/x
  3. Step 3: Cross multiply
    640,678x = 927,968 × 927,968
  4. Step 4: Simplify right side
    640,678x = 861,124,609,024
  5. Step 5: Solve for x
    x = 861,124,609,024/640,678
  6. Step 6: Final answer
    x = 1,344,083.31

Related Problems

Find third proportional to 320,339 and 463,984
Half scale
Find third proportional to 1,281,356 and 1,855,936
Double scale
Find third proportional to 640,680 and 927,971
Similar ratio
Find third proportional to 961,017 and 1,391,952
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.