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Finding the Fourth Proportional to 1,230.60, 1,845.78 and 500.24

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Solution

The fourth proportional to 1,230.60, 1,845.78 and 500.24 is: 750.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.60 : 1,845.78 = 500.24 : x
  2. Step 2: Convert to fraction form
    1,230.60/1,845.78 = 500.24/x
  3. Step 3: Cross multiply
    1,230.60x = 1,845.78 × 500.24
  4. Step 4: Simplify right side
    1,230.60x = 923,332.99
  5. Step 5: Solve for x
    x = 923,332.99/1,230.60
  6. Step 6: Final answer
    x = 750.31

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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.