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Finding the Fourth Proportional to 511,072.92, 704,894.94 and 480,936.60

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Solution

The fourth proportional to 511,072.92, 704,894.94 and 480,936.60 is: 663,329.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,072.92 : 704,894.94 = 480,936.60 : x
  2. Step 2: Convert to fraction form
    511,072.92/704,894.94 = 480,936.60/x
  3. Step 3: Cross multiply
    511,072.92x = 704,894.94 × 480,936.60
  4. Step 4: Simplify right side
    511,072.92x = 339,009,775,800.80
  5. Step 5: Solve for x
    x = 339,009,775,800.80/511,072.92
  6. Step 6: Final answer
    x = 663,329.56

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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.