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Finding the Fourth Proportional to 1,040,052, 1,560,078 and 252,084

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Solution

The fourth proportional to 1,040,052, 1,560,078 and 252,084 is: 378,126

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,052 : 1,560,078 = 252,084 : x
  2. Step 2: Convert to fraction form
    1,040,052/1,560,078 = 252,084/x
  3. Step 3: Cross multiply
    1,040,052x = 1,560,078 × 252,084
  4. Step 4: Simplify right side
    1,040,052x = 393,270,702,552
  5. Step 5: Solve for x
    x = 393,270,702,552/1,040,052
  6. Step 6: Final answer
    x = 378,126

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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.