Home / 285,800-620,792

Finding the Third Proportional to 285,800 and 620,792

Calculator

Solution

The third proportional to 285,800 and 620,792 is: 1,348,434.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,800 : 620,792 = 620,792 : x
  2. Step 2: Convert to fraction form
    285,800/620,792 = 620,792/x
  3. Step 3: Cross multiply
    285,800x = 620,792 × 620,792
  4. Step 4: Simplify right side
    285,800x = 385,382,707,264
  5. Step 5: Solve for x
    x = 385,382,707,264/285,800
  6. Step 6: Final answer
    x = 1,348,434.94

Related Problems

Find third proportional to 142,900 and 310,396
Half scale
Find third proportional to 571,600 and 1,241,584
Double scale
Find third proportional to 285,802 and 620,796
Similar ratio
Find third proportional to 428,700 and 931,188
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.