Home / 512,368-818,520

Finding the Third Proportional to 512,368 and 818,520

Calculator

Solution

The third proportional to 512,368 and 818,520 is: 1,307,605.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,368 : 818,520 = 818,520 : x
  2. Step 2: Convert to fraction form
    512,368/818,520 = 818,520/x
  3. Step 3: Cross multiply
    512,368x = 818,520 × 818,520
  4. Step 4: Simplify right side
    512,368x = 669,974,990,400
  5. Step 5: Solve for x
    x = 669,974,990,400/512,368
  6. Step 6: Final answer
    x = 1,307,605.06

Related Problems

Find third proportional to 256,184 and 409,260
Half scale
Find third proportional to 1,024,736 and 1,637,040
Double scale
Find third proportional to 512,370 and 818,523
Similar ratio
Find third proportional to 768,552 and 1,227,780
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.