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Finding the Fourth Proportional to 543,518, 814,389.12 and 330,351.12

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Solution

The fourth proportional to 543,518, 814,389.12 and 330,351.12 is: 494,987.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,518 : 814,389.12 = 330,351.12 : x
  2. Step 2: Convert to fraction form
    543,518/814,389.12 = 330,351.12/x
  3. Step 3: Cross multiply
    543,518x = 814,389.12 × 330,351.12
  4. Step 4: Simplify right side
    543,518x = 269,034,357,907.81
  5. Step 5: Solve for x
    x = 269,034,357,907.81/543,518
  6. Step 6: Final answer
    x = 494,987.03

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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.