Home / 297,908-638,460

Finding the Third Proportional to 297,908 and 638,460

Calculator

Solution

The third proportional to 297,908 and 638,460 is: 1,368,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,908 : 638,460 = 638,460 : x
  2. Step 2: Convert to fraction form
    297,908/638,460 = 638,460/x
  3. Step 3: Cross multiply
    297,908x = 638,460 × 638,460
  4. Step 4: Simplify right side
    297,908x = 407,631,171,600
  5. Step 5: Solve for x
    x = 407,631,171,600/297,908
  6. Step 6: Final answer
    x = 1,368,312.27

Related Problems

Find third proportional to 148,954 and 319,230
Half scale
Find third proportional to 595,816 and 1,276,920
Double scale
Find third proportional to 297,910 and 638,464
Similar ratio
Find third proportional to 446,862 and 957,690
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.