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Finding the Fourth Proportional to 509,591.04, 764,383.68 and 130,511.04

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Solution

The fourth proportional to 509,591.04, 764,383.68 and 130,511.04 is: 195,765.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,591.04 : 764,383.68 = 130,511.04 : x
  2. Step 2: Convert to fraction form
    509,591.04/764,383.68 = 130,511.04/x
  3. Step 3: Cross multiply
    509,591.04x = 764,383.68 × 130,511.04
  4. Step 4: Simplify right side
    509,591.04x = 99,760,509,035.83
  5. Step 5: Solve for x
    x = 99,760,509,035.83/509,591.04
  6. Step 6: Final answer
    x = 195,765.82

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Why These Related Problems?

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