Home / 1,213,939.20-1,821,721.44-503,967.84

Finding the Fourth Proportional to 1,213,939.20, 1,821,721.44 and 503,967.84

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Solution

The fourth proportional to 1,213,939.20, 1,821,721.44 and 503,967.84 is: 756,289.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,939.20 : 1,821,721.44 = 503,967.84 : x
  2. Step 2: Convert to fraction form
    1,213,939.20/1,821,721.44 = 503,967.84/x
  3. Step 3: Cross multiply
    1,213,939.20x = 1,821,721.44 × 503,967.84
  4. Step 4: Simplify right side
    1,213,939.20x = 918,089,019,198.49
  5. Step 5: Solve for x
    x = 918,089,019,198.49/1,213,939.20
  6. Step 6: Final answer
    x = 756,289.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.