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Finding the Fourth Proportional to 526.38, 788.73 and 449.10

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Solution

The fourth proportional to 526.38, 788.73 and 449.10 is: 672.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.38 : 788.73 = 449.10 : x
  2. Step 2: Convert to fraction form
    526.38/788.73 = 449.10/x
  3. Step 3: Cross multiply
    526.38x = 788.73 × 449.10
  4. Step 4: Simplify right side
    526.38x = 354,218.64
  5. Step 5: Solve for x
    x = 354,218.64/526.38
  6. Step 6: Final answer
    x = 672.93

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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.