Home / 290,868-634,296

Finding the Third Proportional to 290,868 and 634,296

Calculator

Solution

The third proportional to 290,868 and 634,296 is: 1,383,209.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,868 : 634,296 = 634,296 : x
  2. Step 2: Convert to fraction form
    290,868/634,296 = 634,296/x
  3. Step 3: Cross multiply
    290,868x = 634,296 × 634,296
  4. Step 4: Simplify right side
    290,868x = 402,331,415,616
  5. Step 5: Solve for x
    x = 402,331,415,616/290,868
  6. Step 6: Final answer
    x = 1,383,209.62

Related Problems

Find third proportional to 145,434 and 317,148
Half scale
Find third proportional to 581,736 and 1,268,592
Double scale
Find third proportional to 290,870 and 634,300
Similar ratio
Find third proportional to 436,302 and 951,444
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.