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Finding the Fourth Proportional to 403,671.92, 605,508.73 and 379,009.74

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Solution

The fourth proportional to 403,671.92, 605,508.73 and 379,009.74 is: 568,515.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,671.92 : 605,508.73 = 379,009.74 : x
  2. Step 2: Convert to fraction form
    403,671.92/605,508.73 = 379,009.74/x
  3. Step 3: Cross multiply
    403,671.92x = 605,508.73 × 379,009.74
  4. Step 4: Simplify right side
    403,671.92x = 229,493,706,325.03
  5. Step 5: Solve for x
    x = 229,493,706,325.03/403,671.92
  6. Step 6: Final answer
    x = 568,515.41

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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.