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Finding the Fourth Proportional to 414,599.61, 621,911.72 and 115,102.27

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Solution

The fourth proportional to 414,599.61, 621,911.72 and 115,102.27 is: 172,656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,599.61 : 621,911.72 = 115,102.27 : x
  2. Step 2: Convert to fraction form
    414,599.61/621,911.72 = 115,102.27/x
  3. Step 3: Cross multiply
    414,599.61x = 621,911.72 × 115,102.27
  4. Step 4: Simplify right side
    414,599.61x = 71,583,448,278.50
  5. Step 5: Solve for x
    x = 71,583,448,278.50/414,599.61
  6. Step 6: Final answer
    x = 172,656.81

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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.