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Finding the Fourth Proportional to 488,315.88, 673,843.20 and 270,509.76

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Solution

The fourth proportional to 488,315.88, 673,843.20 and 270,509.76 is: 373,285.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,315.88 : 673,843.20 = 270,509.76 : x
  2. Step 2: Convert to fraction form
    488,315.88/673,843.20 = 270,509.76/x
  3. Step 3: Cross multiply
    488,315.88x = 673,843.20 × 270,509.76
  4. Step 4: Simplify right side
    488,315.88x = 182,281,162,309.63
  5. Step 5: Solve for x
    x = 182,281,162,309.63/488,315.88
  6. Step 6: Final answer
    x = 373,285.35

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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.