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Finding the Fourth Proportional to 6,379,308.47, 8,803,658.28 and 3,478,858.04

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Solution

The fourth proportional to 6,379,308.47, 8,803,658.28 and 3,478,858.04 is: 4,800,940.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379,308.47 : 8,803,658.28 = 3,478,858.04 : x
  2. Step 2: Convert to fraction form
    6,379,308.47/8,803,658.28 = 3,478,858.04/x
  3. Step 3: Cross multiply
    6,379,308.47x = 8,803,658.28 × 3,478,858.04
  4. Step 4: Simplify right side
    6,379,308.47x = 30,626,677,388,790.57
  5. Step 5: Solve for x
    x = 30,626,677,388,790.57/6,379,308.47
  6. Step 6: Final answer
    x = 4,800,940.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.