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Finding the Fourth Proportional to 478,801.54, 660,750.74 and 263,949.36

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Solution

The fourth proportional to 478,801.54, 660,750.74 and 263,949.36 is: 364,252.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,801.54 : 660,750.74 = 263,949.36 : x
  2. Step 2: Convert to fraction form
    478,801.54/660,750.74 = 263,949.36/x
  3. Step 3: Cross multiply
    478,801.54x = 660,750.74 × 263,949.36
  4. Step 4: Simplify right side
    478,801.54x = 174,404,734,942.53
  5. Step 5: Solve for x
    x = 174,404,734,942.53/478,801.54
  6. Step 6: Final answer
    x = 364,252.66

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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.