Home / 291,394-628,724

Finding the Third Proportional to 291,394 and 628,724

Calculator

Solution

The third proportional to 291,394 and 628,724 is: 1,356,561.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,394 : 628,724 = 628,724 : x
  2. Step 2: Convert to fraction form
    291,394/628,724 = 628,724/x
  3. Step 3: Cross multiply
    291,394x = 628,724 × 628,724
  4. Step 4: Simplify right side
    291,394x = 395,293,868,176
  5. Step 5: Solve for x
    x = 395,293,868,176/291,394
  6. Step 6: Final answer
    x = 1,356,561.45

Related Problems

Find third proportional to 145,697 and 314,362
Half scale
Find third proportional to 582,788 and 1,257,448
Double scale
Find third proportional to 291,396 and 628,728
Similar ratio
Find third proportional to 437,091 and 943,086
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.