Home / 1,230.24-1,845.54-580.44

Finding the Fourth Proportional to 1,230.24, 1,845.54 and 580.44

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Solution

The fourth proportional to 1,230.24, 1,845.54 and 580.44 is: 870.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.24 : 1,845.54 = 580.44 : x
  2. Step 2: Convert to fraction form
    1,230.24/1,845.54 = 580.44/x
  3. Step 3: Cross multiply
    1,230.24x = 1,845.54 × 580.44
  4. Step 4: Simplify right side
    1,230.24x = 1,071,225.24
  5. Step 5: Solve for x
    x = 1,071,225.24/1,230.24
  6. Step 6: Final answer
    x = 870.74

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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.