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Finding the Fourth Proportional to 672,488.22, 928,005.79 and 366,557.86

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Solution

The fourth proportional to 672,488.22, 928,005.79 and 366,557.86 is: 505,834.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,488.22 : 928,005.79 = 366,557.86 : x
  2. Step 2: Convert to fraction form
    672,488.22/928,005.79 = 366,557.86/x
  3. Step 3: Cross multiply
    672,488.22x = 928,005.79 × 366,557.86
  4. Step 4: Simplify right side
    672,488.22x = 340,167,816,450.01
  5. Step 5: Solve for x
    x = 340,167,816,450.01/672,488.22
  6. Step 6: Final answer
    x = 505,834.61

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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.