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Finding the Fourth Proportional to 488,603.92, 673,993.90 and 284,633.35

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Solution

The fourth proportional to 488,603.92, 673,993.90 and 284,633.35 is: 392,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,603.92 : 673,993.90 = 284,633.35 : x
  2. Step 2: Convert to fraction form
    488,603.92/673,993.90 = 284,633.35/x
  3. Step 3: Cross multiply
    488,603.92x = 673,993.90 × 284,633.35
  4. Step 4: Simplify right side
    488,603.92x = 191,841,141,636.57
  5. Step 5: Solve for x
    x = 191,841,141,636.57/488,603.92
  6. Step 6: Final answer
    x = 392,631.20

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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.