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Finding the Fourth Proportional to 915.37, 1,373.25 and 504.29

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Solution

The fourth proportional to 915.37, 1,373.25 and 504.29 is: 756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    915.37 : 1,373.25 = 504.29 : x
  2. Step 2: Convert to fraction form
    915.37/1,373.25 = 504.29/x
  3. Step 3: Cross multiply
    915.37x = 1,373.25 × 504.29
  4. Step 4: Simplify right side
    915.37x = 692,516.24
  5. Step 5: Solve for x
    x = 692,516.24/915.37
  6. Step 6: Final answer
    x = 756.54

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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.