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Finding the Fourth Proportional to 545,667.75, 814,234.08 and 488,929.89

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Solution

The fourth proportional to 545,667.75, 814,234.08 and 488,929.89 is: 729,571.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,667.75 : 814,234.08 = 488,929.89 : x
  2. Step 2: Convert to fraction form
    545,667.75/814,234.08 = 488,929.89/x
  3. Step 3: Cross multiply
    545,667.75x = 814,234.08 × 488,929.89
  4. Step 4: Simplify right side
    545,667.75x = 398,103,372,652.83
  5. Step 5: Solve for x
    x = 398,103,372,652.83/545,667.75
  6. Step 6: Final answer
    x = 729,571.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.