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Finding the Fourth Proportional to 490,872.88, 735,230.04 and 405,667.36

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Solution

The fourth proportional to 490,872.88, 735,230.04 and 405,667.36 is: 607,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,872.88 : 735,230.04 = 405,667.36 : x
  2. Step 2: Convert to fraction form
    490,872.88/735,230.04 = 405,667.36/x
  3. Step 3: Cross multiply
    490,872.88x = 735,230.04 × 405,667.36
  4. Step 4: Simplify right side
    490,872.88x = 298,258,829,319.49
  5. Step 5: Solve for x
    x = 298,258,829,319.49/490,872.88
  6. Step 6: Final answer
    x = 607,609.10

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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.