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Finding the Fourth Proportional to 533,771.30, 736,792.05 and 329,978.54

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Solution

The fourth proportional to 533,771.30, 736,792.05 and 329,978.54 is: 455,486.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,771.30 : 736,792.05 = 329,978.54 : x
  2. Step 2: Convert to fraction form
    533,771.30/736,792.05 = 329,978.54/x
  3. Step 3: Cross multiply
    533,771.30x = 736,792.05 × 329,978.54
  4. Step 4: Simplify right side
    533,771.30x = 243,125,564,942.61
  5. Step 5: Solve for x
    x = 243,125,564,942.61/533,771.30
  6. Step 6: Final answer
    x = 455,486.39

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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.