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Finding the Fourth Proportional to 437,365.34, 603,766.79 and 308,408.88

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Solution

The fourth proportional to 437,365.34, 603,766.79 and 308,408.88 is: 425,747.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,365.34 : 603,766.79 = 308,408.88 : x
  2. Step 2: Convert to fraction form
    437,365.34/603,766.79 = 308,408.88/x
  3. Step 3: Cross multiply
    437,365.34x = 603,766.79 × 308,408.88
  4. Step 4: Simplify right side
    437,365.34x = 186,207,039,485.10
  5. Step 5: Solve for x
    x = 186,207,039,485.10/437,365.34
  6. Step 6: Final answer
    x = 425,747.13

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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.