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Finding the Fourth Proportional to 1,329.58, 1,994.64 and 464.14

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Solution

The fourth proportional to 1,329.58, 1,994.64 and 464.14 is: 696.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329.58 : 1,994.64 = 464.14 : x
  2. Step 2: Convert to fraction form
    1,329.58/1,994.64 = 464.14/x
  3. Step 3: Cross multiply
    1,329.58x = 1,994.64 × 464.14
  4. Step 4: Simplify right side
    1,329.58x = 925,792.21
  5. Step 5: Solve for x
    x = 925,792.21/1,329.58
  6. Step 6: Final answer
    x = 696.30

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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.