Home / 309,382-492,292

Finding the Third Proportional to 309,382 and 492,292

Calculator

Solution

The third proportional to 309,382 and 492,292 is: 783,340.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,382 : 492,292 = 492,292 : x
  2. Step 2: Convert to fraction form
    309,382/492,292 = 492,292/x
  3. Step 3: Cross multiply
    309,382x = 492,292 × 492,292
  4. Step 4: Simplify right side
    309,382x = 242,351,413,264
  5. Step 5: Solve for x
    x = 242,351,413,264/309,382
  6. Step 6: Final answer
    x = 783,340.38

Related Problems

Find third proportional to 154,691 and 246,146
Half scale
Find third proportional to 618,764 and 984,584
Double scale
Find third proportional to 309,384 and 492,295
Similar ratio
Find third proportional to 464,073 and 738,438
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.