Home / 677,869.88-1,015,565.52-317,379.38

Finding the Fourth Proportional to 677,869.88, 1,015,565.52 and 317,379.38

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Solution

The fourth proportional to 677,869.88, 1,015,565.52 and 317,379.38 is: 475,488.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,869.88 : 1,015,565.52 = 317,379.38 : x
  2. Step 2: Convert to fraction form
    677,869.88/1,015,565.52 = 317,379.38/x
  3. Step 3: Cross multiply
    677,869.88x = 1,015,565.52 × 317,379.38
  4. Step 4: Simplify right side
    677,869.88x = 322,319,555,086.98
  5. Step 5: Solve for x
    x = 322,319,555,086.98/677,869.88
  6. Step 6: Final answer
    x = 475,488.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.