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Finding the Fourth Proportional to 404,730.41, 606,989.78 and 120,344.37

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Solution

The fourth proportional to 404,730.41, 606,989.78 and 120,344.37 is: 180,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,730.41 : 606,989.78 = 120,344.37 : x
  2. Step 2: Convert to fraction form
    404,730.41/606,989.78 = 120,344.37/x
  3. Step 3: Cross multiply
    404,730.41x = 606,989.78 × 120,344.37
  4. Step 4: Simplify right side
    404,730.41x = 73,047,801,453.93
  5. Step 5: Solve for x
    x = 73,047,801,453.93/404,730.41
  6. Step 6: Final answer
    x = 180,485.08

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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.