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Finding the Fourth Proportional to 638,059.92, 880,486.68 and 351,609.36

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Solution

The fourth proportional to 638,059.92, 880,486.68 and 351,609.36 is: 485,201.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,059.92 : 880,486.68 = 351,609.36 : x
  2. Step 2: Convert to fraction form
    638,059.92/880,486.68 = 351,609.36/x
  3. Step 3: Cross multiply
    638,059.92x = 880,486.68 × 351,609.36
  4. Step 4: Simplify right side
    638,059.92x = 309,587,358,043.33
  5. Step 5: Solve for x
    x = 309,587,358,043.33/638,059.92
  6. Step 6: Final answer
    x = 485,201.07

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