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Finding the Fourth Proportional to 3,388,751.69, 4,676,509.85 and 1,860,890.81

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Solution

The fourth proportional to 3,388,751.69, 4,676,509.85 and 1,860,890.81 is: 2,568,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388,751.69 : 4,676,509.85 = 1,860,890.81 : x
  2. Step 2: Convert to fraction form
    3,388,751.69/4,676,509.85 = 1,860,890.81/x
  3. Step 3: Cross multiply
    3,388,751.69x = 4,676,509.85 × 1,860,890.81
  4. Step 4: Simplify right side
    3,388,751.69x = 8,702,474,170,052.48
  5. Step 5: Solve for x
    x = 8,702,474,170,052.48/3,388,751.69
  6. Step 6: Final answer
    x = 2,568,047.17

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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.