Home / 400,578-618,528

Finding the Third Proportional to 400,578 and 618,528

Calculator

Solution

The third proportional to 400,578 and 618,528 is: 955,062.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,578 : 618,528 = 618,528 : x
  2. Step 2: Convert to fraction form
    400,578/618,528 = 618,528/x
  3. Step 3: Cross multiply
    400,578x = 618,528 × 618,528
  4. Step 4: Simplify right side
    400,578x = 382,576,886,784
  5. Step 5: Solve for x
    x = 382,576,886,784/400,578
  6. Step 6: Final answer
    x = 955,062.15

Related Problems

Find third proportional to 200,289 and 309,264
Half scale
Find third proportional to 801,156 and 1,237,056
Double scale
Find third proportional to 400,580 and 618,531
Similar ratio
Find third proportional to 600,867 and 927,792
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.