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Finding the Fourth Proportional to 480,415.92, 663,039.84 and 276,462.64

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Solution

The fourth proportional to 480,415.92, 663,039.84 and 276,462.64 is: 381,556.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,415.92 : 663,039.84 = 276,462.64 : x
  2. Step 2: Convert to fraction form
    480,415.92/663,039.84 = 276,462.64/x
  3. Step 3: Cross multiply
    480,415.92x = 663,039.84 × 276,462.64
  4. Step 4: Simplify right side
    480,415.92x = 183,305,744,591.58
  5. Step 5: Solve for x
    x = 183,305,744,591.58/480,415.92
  6. Step 6: Final answer
    x = 381,556.35

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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.