Home / 1,317.96-1,977.48-496.62

Finding the Fourth Proportional to 1,317.96, 1,977.48 and 496.62

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Solution

The fourth proportional to 1,317.96, 1,977.48 and 496.62 is: 745.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.96 : 1,977.48 = 496.62 : x
  2. Step 2: Convert to fraction form
    1,317.96/1,977.48 = 496.62/x
  3. Step 3: Cross multiply
    1,317.96x = 1,977.48 × 496.62
  4. Step 4: Simplify right side
    1,317.96x = 982,056.12
  5. Step 5: Solve for x
    x = 982,056.12/1,317.96
  6. Step 6: Final answer
    x = 745.13

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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.