Home / 638,813.18-957,038.79-322,514.66

Finding the Fourth Proportional to 638,813.18, 957,038.79 and 322,514.66

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Solution

The fourth proportional to 638,813.18, 957,038.79 and 322,514.66 is: 483,175.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,813.18 : 957,038.79 = 322,514.66 : x
  2. Step 2: Convert to fraction form
    638,813.18/957,038.79 = 322,514.66/x
  3. Step 3: Cross multiply
    638,813.18x = 957,038.79 × 322,514.66
  4. Step 4: Simplify right side
    638,813.18x = 308,659,043,565.69
  5. Step 5: Solve for x
    x = 308,659,043,565.69/638,813.18
  6. Step 6: Final answer
    x = 483,175.76

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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.