Home / 512,388-818,548

Finding the Third Proportional to 512,388 and 818,548

Calculator

Solution

The third proportional to 512,388 and 818,548 is: 1,307,643.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,388 : 818,548 = 818,548 : x
  2. Step 2: Convert to fraction form
    512,388/818,548 = 818,548/x
  3. Step 3: Cross multiply
    512,388x = 818,548 × 818,548
  4. Step 4: Simplify right side
    512,388x = 670,020,828,304
  5. Step 5: Solve for x
    x = 670,020,828,304/512,388
  6. Step 6: Final answer
    x = 1,307,643.48

Related Problems

Find third proportional to 256,194 and 409,274
Half scale
Find third proportional to 1,024,776 and 1,637,096
Double scale
Find third proportional to 512,390 and 818,551
Similar ratio
Find third proportional to 768,582 and 1,227,822
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.