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Finding the Fourth Proportional to 527.07, 791.42 and 469.83

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Solution

The fourth proportional to 527.07, 791.42 and 469.83 is: 705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.07 : 791.42 = 469.83 : x
  2. Step 2: Convert to fraction form
    527.07/791.42 = 469.83/x
  3. Step 3: Cross multiply
    527.07x = 791.42 × 469.83
  4. Step 4: Simplify right side
    527.07x = 371,830.51
  5. Step 5: Solve for x
    x = 371,830.51/527.07
  6. Step 6: Final answer
    x = 705.47

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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.