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Finding the Fourth Proportional to 638,277.55, 880,842.68 and 366,395.11

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Solution

The fourth proportional to 638,277.55, 880,842.68 and 366,395.11 is: 505,636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,277.55 : 880,842.68 = 366,395.11 : x
  2. Step 2: Convert to fraction form
    638,277.55/880,842.68 = 366,395.11/x
  3. Step 3: Cross multiply
    638,277.55x = 880,842.68 × 366,395.11
  4. Step 4: Simplify right side
    638,277.55x = 322,736,450,631.30
  5. Step 5: Solve for x
    x = 322,736,450,631.30/638,277.55
  6. Step 6: Final answer
    x = 505,636.54

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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.