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Finding the Fourth Proportional to 501,978.60, 752,912.82 and 146,996.16

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Solution

The fourth proportional to 501,978.60, 752,912.82 and 146,996.16 is: 220,478.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,978.60 : 752,912.82 = 146,996.16 : x
  2. Step 2: Convert to fraction form
    501,978.60/752,912.82 = 146,996.16/x
  3. Step 3: Cross multiply
    501,978.60x = 752,912.82 × 146,996.16
  4. Step 4: Simplify right side
    501,978.60x = 110,675,293,354.77
  5. Step 5: Solve for x
    x = 110,675,293,354.77/501,978.60
  6. Step 6: Final answer
    x = 220,478.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.