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Finding the Fourth Proportional to 953.42, 1,432.51 and 606.89

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Solution

The fourth proportional to 953.42, 1,432.51 and 606.89 is: 911.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.42 : 1,432.51 = 606.89 : x
  2. Step 2: Convert to fraction form
    953.42/1,432.51 = 606.89/x
  3. Step 3: Cross multiply
    953.42x = 1,432.51 × 606.89
  4. Step 4: Simplify right side
    953.42x = 869,378.06
  5. Step 5: Solve for x
    x = 869,378.06/953.42
  6. Step 6: Final answer
    x = 911.86

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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.