Home / 260,820-403,560

Finding the Third Proportional to 260,820 and 403,560

Calculator

Solution

The third proportional to 260,820 and 403,560 is: 624,417.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,820 : 403,560 = 403,560 : x
  2. Step 2: Convert to fraction form
    260,820/403,560 = 403,560/x
  3. Step 3: Cross multiply
    260,820x = 403,560 × 403,560
  4. Step 4: Simplify right side
    260,820x = 162,860,673,600
  5. Step 5: Solve for x
    x = 162,860,673,600/260,820
  6. Step 6: Final answer
    x = 624,417.89

Related Problems

Find third proportional to 130,410 and 201,780
Half scale
Find third proportional to 521,640 and 807,120
Double scale
Find third proportional to 260,822 and 403,563
Similar ratio
Find third proportional to 391,230 and 605,340
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.