Home / 388,190-617,276

Finding the Third Proportional to 388,190 and 617,276

Calculator

Solution

The third proportional to 388,190 and 617,276 is: 981,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,190 : 617,276 = 617,276 : x
  2. Step 2: Convert to fraction form
    388,190/617,276 = 617,276/x
  3. Step 3: Cross multiply
    388,190x = 617,276 × 617,276
  4. Step 4: Simplify right side
    388,190x = 381,029,660,176
  5. Step 5: Solve for x
    x = 381,029,660,176/388,190
  6. Step 6: Final answer
    x = 981,554.55

Related Problems

Find third proportional to 194,095 and 308,638
Half scale
Find third proportional to 776,380 and 1,234,552
Double scale
Find third proportional to 388,192 and 617,279
Similar ratio
Find third proportional to 582,285 and 925,914
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.