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Finding the Fourth Proportional to 488,357.20, 673,900.86 and 273,448

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Solution

The fourth proportional to 488,357.20, 673,900.86 and 273,448 is: 377,340.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,357.20 : 673,900.86 = 273,448 : x
  2. Step 2: Convert to fraction form
    488,357.20/673,900.86 = 273,448/x
  3. Step 3: Cross multiply
    488,357.20x = 673,900.86 × 273,448
  4. Step 4: Simplify right side
    488,357.20x = 184,276,842,365.28
  5. Step 5: Solve for x
    x = 184,276,842,365.28/488,357.20
  6. Step 6: Final answer
    x = 377,340.28

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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.