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Finding the Fourth Proportional to 935.88, 1,404.69 and 473.99

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Solution

The fourth proportional to 935.88, 1,404.69 and 473.99 is: 711.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    935.88 : 1,404.69 = 473.99 : x
  2. Step 2: Convert to fraction form
    935.88/1,404.69 = 473.99/x
  3. Step 3: Cross multiply
    935.88x = 1,404.69 × 473.99
  4. Step 4: Simplify right side
    935.88x = 665,801.99
  5. Step 5: Solve for x
    x = 665,801.99/935.88
  6. Step 6: Final answer
    x = 711.42

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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.