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Finding the Fourth Proportional to 637,890.72, 957,429 and 322,573.92

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Solution

The fourth proportional to 637,890.72, 957,429 and 322,573.92 is: 484,160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,890.72 : 957,429 = 322,573.92 : x
  2. Step 2: Convert to fraction form
    637,890.72/957,429 = 322,573.92/x
  3. Step 3: Cross multiply
    637,890.72x = 957,429 × 322,573.92
  4. Step 4: Simplify right side
    637,890.72x = 308,841,625,651.68
  5. Step 5: Solve for x
    x = 308,841,625,651.68/637,890.72
  6. Step 6: Final answer
    x = 484,160.71

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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.