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Finding the Fourth Proportional to 488,603.17, 673,992.87 and 284,632.60

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Solution

The fourth proportional to 488,603.17, 673,992.87 and 284,632.60 is: 392,630.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,603.17 : 673,992.87 = 284,632.60 : x
  2. Step 2: Convert to fraction form
    488,603.17/673,992.87 = 284,632.60/x
  3. Step 3: Cross multiply
    488,603.17x = 673,992.87 × 284,632.60
  4. Step 4: Simplify right side
    488,603.17x = 191,840,342,969.56
  5. Step 5: Solve for x
    x = 191,840,342,969.56/488,603.17
  6. Step 6: Final answer
    x = 392,630.16

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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.