Home / 299,200-645,056

Finding the Third Proportional to 299,200 and 645,056

Calculator

Solution

The third proportional to 299,200 and 645,056 is: 1,390,699.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,200 : 645,056 = 645,056 : x
  2. Step 2: Convert to fraction form
    299,200/645,056 = 645,056/x
  3. Step 3: Cross multiply
    299,200x = 645,056 × 645,056
  4. Step 4: Simplify right side
    299,200x = 416,097,243,136
  5. Step 5: Solve for x
    x = 416,097,243,136/299,200
  6. Step 6: Final answer
    x = 1,390,699.34

Related Problems

Find third proportional to 149,600 and 322,528
Half scale
Find third proportional to 598,400 and 1,290,112
Double scale
Find third proportional to 299,202 and 645,060
Similar ratio
Find third proportional to 448,800 and 967,584
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.