Home / 638,148-987,994

Finding the Third Proportional to 638,148 and 987,994

Calculator

Solution

The third proportional to 638,148 and 987,994 is: 1,529,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,148 : 987,994 = 987,994 : x
  2. Step 2: Convert to fraction form
    638,148/987,994 = 987,994/x
  3. Step 3: Cross multiply
    638,148x = 987,994 × 987,994
  4. Step 4: Simplify right side
    638,148x = 976,132,144,036
  5. Step 5: Solve for x
    x = 976,132,144,036/638,148
  6. Step 6: Final answer
    x = 1,529,632.85

Related Problems

Find third proportional to 319,074 and 493,997
Half scale
Find third proportional to 1,276,296 and 1,975,988
Double scale
Find third proportional to 638,150 and 987,997
Similar ratio
Find third proportional to 957,222 and 1,481,991
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.