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Finding the Fourth Proportional to 1,065.75, 1,598.62 and 676.14

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Solution

The fourth proportional to 1,065.75, 1,598.62 and 676.14 is: 1,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065.75 : 1,598.62 = 676.14 : x
  2. Step 2: Convert to fraction form
    1,065.75/1,598.62 = 676.14/x
  3. Step 3: Cross multiply
    1,065.75x = 1,598.62 × 676.14
  4. Step 4: Simplify right side
    1,065.75x = 1,080,890.93
  5. Step 5: Solve for x
    x = 1,080,890.93/1,065.75
  6. Step 6: Final answer
    x = 1,014.21

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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.