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Finding the Fourth Proportional to 1,328,268, 1,992,402 and 441,804

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Solution

The fourth proportional to 1,328,268, 1,992,402 and 441,804 is: 662,706

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,268 : 1,992,402 = 441,804 : x
  2. Step 2: Convert to fraction form
    1,328,268/1,992,402 = 441,804/x
  3. Step 3: Cross multiply
    1,328,268x = 1,992,402 × 441,804
  4. Step 4: Simplify right side
    1,328,268x = 880,251,173,208
  5. Step 5: Solve for x
    x = 880,251,173,208/1,328,268
  6. Step 6: Final answer
    x = 662,706

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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.