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Finding the Fourth Proportional to 522.42, 786.46 and 469.50

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Solution

The fourth proportional to 522.42, 786.46 and 469.50 is: 706.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.42 : 786.46 = 469.50 : x
  2. Step 2: Convert to fraction form
    522.42/786.46 = 469.50/x
  3. Step 3: Cross multiply
    522.42x = 786.46 × 469.50
  4. Step 4: Simplify right side
    522.42x = 369,242.97
  5. Step 5: Solve for x
    x = 369,242.97/522.42
  6. Step 6: Final answer
    x = 706.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.