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Finding the Fourth Proportional to 1,237.15, 1,855.71 and 506.73

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Solution

The fourth proportional to 1,237.15, 1,855.71 and 506.73 is: 760.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237.15 : 1,855.71 = 506.73 : x
  2. Step 2: Convert to fraction form
    1,237.15/1,855.71 = 506.73/x
  3. Step 3: Cross multiply
    1,237.15x = 1,855.71 × 506.73
  4. Step 4: Simplify right side
    1,237.15x = 940,334.65
  5. Step 5: Solve for x
    x = 940,334.65/1,237.15
  6. Step 6: Final answer
    x = 760.08

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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.