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Finding the Fourth Proportional to 488,604.92, 673,995.28 and 284,634.35

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Solution

The fourth proportional to 488,604.92, 673,995.28 and 284,634.35 is: 392,632.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,604.92 : 673,995.28 = 284,634.35 : x
  2. Step 2: Convert to fraction form
    488,604.92/673,995.28 = 284,634.35/x
  3. Step 3: Cross multiply
    488,604.92x = 673,995.28 × 284,634.35
  4. Step 4: Simplify right side
    488,604.92x = 191,842,208,425.87
  5. Step 5: Solve for x
    x = 191,842,208,425.87/488,604.92
  6. Step 6: Final answer
    x = 392,632.58

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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.