Home / 393,082-623,431

Finding the Third Proportional to 393,082 and 623,431

Calculator

Solution

The third proportional to 393,082 and 623,431 is: 988,766.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,082 : 623,431 = 623,431 : x
  2. Step 2: Convert to fraction form
    393,082/623,431 = 623,431/x
  3. Step 3: Cross multiply
    393,082x = 623,431 × 623,431
  4. Step 4: Simplify right side
    393,082x = 388,666,211,761
  5. Step 5: Solve for x
    x = 388,666,211,761/393,082
  6. Step 6: Final answer
    x = 988,766.24

Related Problems

Find third proportional to 196,541 and 311,715.50
Half scale
Find third proportional to 786,164 and 1,246,862
Double scale
Find third proportional to 393,084 and 623,434
Similar ratio
Find third proportional to 589,623 and 935,146.50
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.