Home / 316,552-489,494

Finding the Third Proportional to 316,552 and 489,494

Calculator

Solution

The third proportional to 316,552 and 489,494 is: 756,919.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,552 : 489,494 = 489,494 : x
  2. Step 2: Convert to fraction form
    316,552/489,494 = 489,494/x
  3. Step 3: Cross multiply
    316,552x = 489,494 × 489,494
  4. Step 4: Simplify right side
    316,552x = 239,604,376,036
  5. Step 5: Solve for x
    x = 239,604,376,036/316,552
  6. Step 6: Final answer
    x = 756,919.48

Related Problems

Find third proportional to 158,276 and 244,747
Half scale
Find third proportional to 633,104 and 978,988
Double scale
Find third proportional to 316,554 and 489,497
Similar ratio
Find third proportional to 474,828 and 734,241
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.