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Finding the Fourth Proportional to 638,601.54, 881,225.06 and 352,115.52

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Solution

The fourth proportional to 638,601.54, 881,225.06 and 352,115.52 is: 485,894.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,601.54 : 881,225.06 = 352,115.52 : x
  2. Step 2: Convert to fraction form
    638,601.54/881,225.06 = 352,115.52/x
  3. Step 3: Cross multiply
    638,601.54x = 881,225.06 × 352,115.52
  4. Step 4: Simplify right side
    638,601.54x = 310,293,018,478.35
  5. Step 5: Solve for x
    x = 310,293,018,478.35/638,601.54
  6. Step 6: Final answer
    x = 485,894.57

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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.