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Finding the Fourth Proportional to 489,438.94, 734,002.89 and 332,674.78

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Solution

The fourth proportional to 489,438.94, 734,002.89 and 332,674.78 is: 498,906.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,438.94 : 734,002.89 = 332,674.78 : x
  2. Step 2: Convert to fraction form
    489,438.94/734,002.89 = 332,674.78/x
  3. Step 3: Cross multiply
    489,438.94x = 734,002.89 × 332,674.78
  4. Step 4: Simplify right side
    489,438.94x = 244,184,249,950.11
  5. Step 5: Solve for x
    x = 244,184,249,950.11/489,438.94
  6. Step 6: Final answer
    x = 498,906.46

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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.