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Finding the Fourth Proportional to 1,235.61, 1,853.42 and 504.67

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Solution

The fourth proportional to 1,235.61, 1,853.42 and 504.67 is: 757.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235.61 : 1,853.42 = 504.67 : x
  2. Step 2: Convert to fraction form
    1,235.61/1,853.42 = 504.67/x
  3. Step 3: Cross multiply
    1,235.61x = 1,853.42 × 504.67
  4. Step 4: Simplify right side
    1,235.61x = 935,362.95
  5. Step 5: Solve for x
    x = 935,362.95/1,235.61
  6. Step 6: Final answer
    x = 757.01

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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.