Home / 297,905-638,450

Finding the Third Proportional to 297,905 and 638,450

Calculator

Solution

The third proportional to 297,905 and 638,450 is: 1,368,283.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,905 : 638,450 = 638,450 : x
  2. Step 2: Convert to fraction form
    297,905/638,450 = 638,450/x
  3. Step 3: Cross multiply
    297,905x = 638,450 × 638,450
  4. Step 4: Simplify right side
    297,905x = 407,618,402,500
  5. Step 5: Solve for x
    x = 407,618,402,500/297,905
  6. Step 6: Final answer
    x = 1,368,283.19

Related Problems

Find third proportional to 148,952.50 and 319,225
Half scale
Find third proportional to 595,810 and 1,276,900
Double scale
Find third proportional to 297,907 and 638,454
Similar ratio
Find third proportional to 446,857.50 and 957,675
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.