Home / 643,580-874,054

Finding the Third Proportional to 643,580 and 874,054

Calculator

Solution

The third proportional to 643,580 and 874,054 is: 1,187,063.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,580 : 874,054 = 874,054 : x
  2. Step 2: Convert to fraction form
    643,580/874,054 = 874,054/x
  3. Step 3: Cross multiply
    643,580x = 874,054 × 874,054
  4. Step 4: Simplify right side
    643,580x = 763,970,394,916
  5. Step 5: Solve for x
    x = 763,970,394,916/643,580
  6. Step 6: Final answer
    x = 1,187,063.61

Related Problems

Find third proportional to 321,790 and 437,027
Half scale
Find third proportional to 1,287,160 and 1,748,108
Double scale
Find third proportional to 643,582 and 874,057
Similar ratio
Find third proportional to 965,370 and 1,311,081
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.