Home / 437,305-657,308

Finding the Third Proportional to 437,305 and 657,308

Calculator

Solution

The third proportional to 437,305 and 657,308 is: 987,991.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,305 : 657,308 = 657,308 : x
  2. Step 2: Convert to fraction form
    437,305/657,308 = 657,308/x
  3. Step 3: Cross multiply
    437,305x = 657,308 × 657,308
  4. Step 4: Simplify right side
    437,305x = 432,053,806,864
  5. Step 5: Solve for x
    x = 432,053,806,864/437,305
  6. Step 6: Final answer
    x = 987,991.92

Related Problems

Find third proportional to 218,652.50 and 328,654
Half scale
Find third proportional to 874,610 and 1,314,616
Double scale
Find third proportional to 437,307 and 657,311
Similar ratio
Find third proportional to 655,957.50 and 985,962
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.