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Finding the Fourth Proportional to 482,495.73, 665,831.23 and 278,539.75

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Solution

The fourth proportional to 482,495.73, 665,831.23 and 278,539.75 is: 384,377.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,495.73 : 665,831.23 = 278,539.75 : x
  2. Step 2: Convert to fraction form
    482,495.73/665,831.23 = 278,539.75/x
  3. Step 3: Cross multiply
    482,495.73x = 665,831.23 × 278,539.75
  4. Step 4: Simplify right side
    482,495.73x = 185,460,464,346.39
  5. Step 5: Solve for x
    x = 185,460,464,346.39/482,495.73
  6. Step 6: Final answer
    x = 384,377.42

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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.