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Finding the Fourth Proportional to 606,745.38, 909,836.49 and 354,098.58

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Solution

The fourth proportional to 606,745.38, 909,836.49 and 354,098.58 is: 530,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,745.38 : 909,836.49 = 354,098.58 : x
  2. Step 2: Convert to fraction form
    606,745.38/909,836.49 = 354,098.58/x
  3. Step 3: Cross multiply
    606,745.38x = 909,836.49 × 354,098.58
  4. Step 4: Simplify right side
    606,745.38x = 322,171,809,141.18
  5. Step 5: Solve for x
    x = 322,171,809,141.18/606,745.38
  6. Step 6: Final answer
    x = 530,983.54

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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.