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Finding the Fourth Proportional to 480,676.77, 717,879.53 and 408,833.82

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Solution

The fourth proportional to 480,676.77, 717,879.53 and 408,833.82 is: 610,583.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,676.77 : 717,879.53 = 408,833.82 : x
  2. Step 2: Convert to fraction form
    480,676.77/717,879.53 = 408,833.82/x
  3. Step 3: Cross multiply
    480,676.77x = 717,879.53 × 408,833.82
  4. Step 4: Simplify right side
    480,676.77x = 293,493,428,505.54
  5. Step 5: Solve for x
    x = 293,493,428,505.54/480,676.77
  6. Step 6: Final answer
    x = 610,583.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.