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Finding the Fourth Proportional to 1,328,262, 1,992,393 and 441,798

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Solution

The fourth proportional to 1,328,262, 1,992,393 and 441,798 is: 662,697

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,262 : 1,992,393 = 441,798 : x
  2. Step 2: Convert to fraction form
    1,328,262/1,992,393 = 441,798/x
  3. Step 3: Cross multiply
    1,328,262x = 1,992,393 × 441,798
  4. Step 4: Simplify right side
    1,328,262x = 880,235,242,614
  5. Step 5: Solve for x
    x = 880,235,242,614/1,328,262
  6. Step 6: Final answer
    x = 662,697

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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.