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Finding the Fourth Proportional to 1,065.47, 1,598.45 and 449.37

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Solution

The fourth proportional to 1,065.47, 1,598.45 and 449.37 is: 674.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065.47 : 1,598.45 = 449.37 : x
  2. Step 2: Convert to fraction form
    1,065.47/1,598.45 = 449.37/x
  3. Step 3: Cross multiply
    1,065.47x = 1,598.45 × 449.37
  4. Step 4: Simplify right side
    1,065.47x = 718,293.23
  5. Step 5: Solve for x
    x = 718,293.23/1,065.47
  6. Step 6: Final answer
    x = 674.16

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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.