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Finding the Fourth Proportional to 672,484.81, 928,015.19 and 366,558.54

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Solution

The fourth proportional to 672,484.81, 928,015.19 and 366,558.54 is: 505,843.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,484.81 : 928,015.19 = 366,558.54 : x
  2. Step 2: Convert to fraction form
    672,484.81/928,015.19 = 366,558.54/x
  3. Step 3: Cross multiply
    672,484.81x = 928,015.19 × 366,558.54
  4. Step 4: Simplify right side
    672,484.81x = 340,171,891,311.43
  5. Step 5: Solve for x
    x = 340,171,891,311.43/672,484.81
  6. Step 6: Final answer
    x = 505,843.24

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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.