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Finding the Fourth Proportional to 3,280,310.65, 4,919,905.16 and 883,594.77

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Solution

The fourth proportional to 3,280,310.65, 4,919,905.16 and 883,594.77 is: 1,325,241.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,310.65 : 4,919,905.16 = 883,594.77 : x
  2. Step 2: Convert to fraction form
    3,280,310.65/4,919,905.16 = 883,594.77/x
  3. Step 3: Cross multiply
    3,280,310.65x = 4,919,905.16 × 883,594.77
  4. Step 4: Simplify right side
    3,280,310.65x = 4,347,202,468,272.01
  5. Step 5: Solve for x
    x = 4,347,202,468,272.01/3,280,310.65
  6. Step 6: Final answer
    x = 1,325,241.09

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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.