Home / 307,260-635,840

Finding the Third Proportional to 307,260 and 635,840

Calculator

Solution

The third proportional to 307,260 and 635,840 is: 1,315,799.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,260 : 635,840 = 635,840 : x
  2. Step 2: Convert to fraction form
    307,260/635,840 = 635,840/x
  3. Step 3: Cross multiply
    307,260x = 635,840 × 635,840
  4. Step 4: Simplify right side
    307,260x = 404,292,505,600
  5. Step 5: Solve for x
    x = 404,292,505,600/307,260
  6. Step 6: Final answer
    x = 1,315,799.34

Related Problems

Find third proportional to 153,630 and 317,920
Half scale
Find third proportional to 614,520 and 1,271,680
Double scale
Find third proportional to 307,262 and 635,844
Similar ratio
Find third proportional to 460,890 and 953,760
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.