Home / 380,858-559,501

Finding the Third Proportional to 380,858 and 559,501

Calculator

Solution

The third proportional to 380,858 and 559,501 is: 821,937.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,858 : 559,501 = 559,501 : x
  2. Step 2: Convert to fraction form
    380,858/559,501 = 559,501/x
  3. Step 3: Cross multiply
    380,858x = 559,501 × 559,501
  4. Step 4: Simplify right side
    380,858x = 313,041,369,001
  5. Step 5: Solve for x
    x = 313,041,369,001/380,858
  6. Step 6: Final answer
    x = 821,937.23

Related Problems

Find third proportional to 190,429 and 279,750.50
Half scale
Find third proportional to 761,716 and 1,119,002
Double scale
Find third proportional to 380,860 and 559,504
Similar ratio
Find third proportional to 571,287 and 839,251.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.