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Finding the Fourth Proportional to 6,379,309.47, 8,803,659.66 and 3,478,859.04

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Solution

The fourth proportional to 6,379,309.47, 8,803,659.66 and 3,478,859.04 is: 4,800,941.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379,309.47 : 8,803,659.66 = 3,478,859.04 : x
  2. Step 2: Convert to fraction form
    6,379,309.47/8,803,659.66 = 3,478,859.04/x
  3. Step 3: Cross multiply
    6,379,309.47x = 8,803,659.66 × 3,478,859.04
  4. Step 4: Simplify right side
    6,379,309.47x = 30,626,690,993,274.33
  5. Step 5: Solve for x
    x = 30,626,690,993,274.33/6,379,309.47
  6. Step 6: Final answer
    x = 4,800,941.41

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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.