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Finding the Fourth Proportional to 3,394,807.50, 4,684,740.90 and 1,866,914.62

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Solution

The fourth proportional to 3,394,807.50, 4,684,740.90 and 1,866,914.62 is: 2,576,290.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394,807.50 : 4,684,740.90 = 1,866,914.62 : x
  2. Step 2: Convert to fraction form
    3,394,807.50/4,684,740.90 = 1,866,914.62/x
  3. Step 3: Cross multiply
    3,394,807.50x = 4,684,740.90 × 1,866,914.62
  4. Step 4: Simplify right side
    3,394,807.50x = 8,746,011,277,121.96
  5. Step 5: Solve for x
    x = 8,746,011,277,121.96/3,394,807.50
  6. Step 6: Final answer
    x = 2,576,290.78

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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.