Home / 317,638-698,248

Finding the Third Proportional to 317,638 and 698,248

Calculator

Solution

The third proportional to 317,638 and 698,248 is: 1,534,924.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,638 : 698,248 = 698,248 : x
  2. Step 2: Convert to fraction form
    317,638/698,248 = 698,248/x
  3. Step 3: Cross multiply
    317,638x = 698,248 × 698,248
  4. Step 4: Simplify right side
    317,638x = 487,550,269,504
  5. Step 5: Solve for x
    x = 487,550,269,504/317,638
  6. Step 6: Final answer
    x = 1,534,924.25

Related Problems

Find third proportional to 158,819 and 349,124
Half scale
Find third proportional to 635,276 and 1,396,496
Double scale
Find third proportional to 317,640 and 698,252
Similar ratio
Find third proportional to 476,457 and 1,047,372
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.