Home / 366,930-787,428

Finding the Third Proportional to 366,930 and 787,428

Calculator

Solution

The third proportional to 366,930 and 787,428 is: 1,689,812.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,930 : 787,428 = 787,428 : x
  2. Step 2: Convert to fraction form
    366,930/787,428 = 787,428/x
  3. Step 3: Cross multiply
    366,930x = 787,428 × 787,428
  4. Step 4: Simplify right side
    366,930x = 620,042,855,184
  5. Step 5: Solve for x
    x = 620,042,855,184/366,930
  6. Step 6: Final answer
    x = 1,689,812.38

Related Problems

Find third proportional to 183,465 and 393,714
Half scale
Find third proportional to 733,860 and 1,574,856
Double scale
Find third proportional to 366,932 and 787,432
Similar ratio
Find third proportional to 550,395 and 1,181,142
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.