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Finding the Fourth Proportional to 958.55, 1,435.56 and 471.74

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Solution

The fourth proportional to 958.55, 1,435.56 and 471.74 is: 706.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.55 : 1,435.56 = 471.74 : x
  2. Step 2: Convert to fraction form
    958.55/1,435.56 = 471.74/x
  3. Step 3: Cross multiply
    958.55x = 1,435.56 × 471.74
  4. Step 4: Simplify right side
    958.55x = 677,211.07
  5. Step 5: Solve for x
    x = 677,211.07/958.55
  6. Step 6: Final answer
    x = 706.50

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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.