Home / 428,976-923,724

Finding the Third Proportional to 428,976 and 923,724

Calculator

Solution

The third proportional to 428,976 and 923,724 is: 1,989,076.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,976 : 923,724 = 923,724 : x
  2. Step 2: Convert to fraction form
    428,976/923,724 = 923,724/x
  3. Step 3: Cross multiply
    428,976x = 923,724 × 923,724
  4. Step 4: Simplify right side
    428,976x = 853,266,028,176
  5. Step 5: Solve for x
    x = 853,266,028,176/428,976
  6. Step 6: Final answer
    x = 1,989,076.38

Related Problems

Find third proportional to 214,488 and 461,862
Half scale
Find third proportional to 857,952 and 1,847,448
Double scale
Find third proportional to 428,978 and 923,728
Similar ratio
Find third proportional to 643,464 and 1,385,586
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.