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Finding the Fourth Proportional to 3,998,787.93, 5,998,352.59 and 1,570,467.45

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Solution

The fourth proportional to 3,998,787.93, 5,998,352.59 and 1,570,467.45 is: 2,355,768.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998,787.93 : 5,998,352.59 = 1,570,467.45 : x
  2. Step 2: Convert to fraction form
    3,998,787.93/5,998,352.59 = 1,570,467.45/x
  3. Step 3: Cross multiply
    3,998,787.93x = 5,998,352.59 × 1,570,467.45
  4. Step 4: Simplify right side
    3,998,787.93x = 9,420,217,520,675.10
  5. Step 5: Solve for x
    x = 9,420,217,520,675.10/3,998,787.93
  6. Step 6: Final answer
    x = 2,355,768.22

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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.