Home / 447,138-664,632

Finding the Third Proportional to 447,138 and 664,632

Calculator

Solution

The third proportional to 447,138 and 664,632 is: 987,918.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,138 : 664,632 = 664,632 : x
  2. Step 2: Convert to fraction form
    447,138/664,632 = 664,632/x
  3. Step 3: Cross multiply
    447,138x = 664,632 × 664,632
  4. Step 4: Simplify right side
    447,138x = 441,735,695,424
  5. Step 5: Solve for x
    x = 441,735,695,424/447,138
  6. Step 6: Final answer
    x = 987,918.04

Related Problems

Find third proportional to 223,569 and 332,316
Half scale
Find third proportional to 894,276 and 1,329,264
Double scale
Find third proportional to 447,140 and 664,635
Similar ratio
Find third proportional to 670,707 and 996,948
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.