Home / 286,114-621,388

Finding the Third Proportional to 286,114 and 621,388

Calculator

Solution

The third proportional to 286,114 and 621,388 is: 1,349,542.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,114 : 621,388 = 621,388 : x
  2. Step 2: Convert to fraction form
    286,114/621,388 = 621,388/x
  3. Step 3: Cross multiply
    286,114x = 621,388 × 621,388
  4. Step 4: Simplify right side
    286,114x = 386,123,046,544
  5. Step 5: Solve for x
    x = 386,123,046,544/286,114
  6. Step 6: Final answer
    x = 1,349,542.65

Related Problems

Find third proportional to 143,057 and 310,694
Half scale
Find third proportional to 572,228 and 1,242,776
Double scale
Find third proportional to 286,116 and 621,392
Similar ratio
Find third proportional to 429,171 and 932,082
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.