Home / 307,622-646,348

Finding the Third Proportional to 307,622 and 646,348

Calculator

Solution

The third proportional to 307,622 and 646,348 is: 1,358,048.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,622 : 646,348 = 646,348 : x
  2. Step 2: Convert to fraction form
    307,622/646,348 = 646,348/x
  3. Step 3: Cross multiply
    307,622x = 646,348 × 646,348
  4. Step 4: Simplify right side
    307,622x = 417,765,737,104
  5. Step 5: Solve for x
    x = 417,765,737,104/307,622
  6. Step 6: Final answer
    x = 1,358,048.96

Related Problems

Find third proportional to 153,811 and 323,174
Half scale
Find third proportional to 615,244 and 1,292,696
Double scale
Find third proportional to 307,624 and 646,352
Similar ratio
Find third proportional to 461,433 and 969,522
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.