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Finding the Fourth Proportional to 1,328,002, 1,992,020.28 and 441,538

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Solution

The fourth proportional to 1,328,002, 1,992,020.28 and 441,538 is: 662,312.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,002 : 1,992,020.28 = 441,538 : x
  2. Step 2: Convert to fraction form
    1,328,002/1,992,020.28 = 441,538/x
  3. Step 3: Cross multiply
    1,328,002x = 1,992,020.28 × 441,538
  4. Step 4: Simplify right side
    1,328,002x = 879,552,650,390.64
  5. Step 5: Solve for x
    x = 879,552,650,390.64/1,328,002
  6. Step 6: Final answer
    x = 662,312.75

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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.