Home / 388,422-847,455

Finding the Third Proportional to 388,422 and 847,455

Calculator

Solution

The third proportional to 388,422 and 847,455 is: 1,848,968.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,422 : 847,455 = 847,455 : x
  2. Step 2: Convert to fraction form
    388,422/847,455 = 847,455/x
  3. Step 3: Cross multiply
    388,422x = 847,455 × 847,455
  4. Step 4: Simplify right side
    388,422x = 718,179,977,025
  5. Step 5: Solve for x
    x = 718,179,977,025/388,422
  6. Step 6: Final answer
    x = 1,848,968.33

Related Problems

Find third proportional to 194,211 and 423,727.50
Half scale
Find third proportional to 776,844 and 1,694,910
Double scale
Find third proportional to 388,424 and 847,459
Similar ratio
Find third proportional to 582,633 and 1,271,182.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.