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Finding the Fourth Proportional to 638,356.84, 880,977.54 and 366,469

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Solution

The fourth proportional to 638,356.84, 880,977.54 and 366,469 is: 505,753.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,356.84 : 880,977.54 = 366,469 : x
  2. Step 2: Convert to fraction form
    638,356.84/880,977.54 = 366,469/x
  3. Step 3: Cross multiply
    638,356.84x = 880,977.54 × 366,469
  4. Step 4: Simplify right side
    638,356.84x = 322,850,958,106.26
  5. Step 5: Solve for x
    x = 322,850,958,106.26/638,356.84
  6. Step 6: Final answer
    x = 505,753.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.