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Finding the Fourth Proportional to 835.58, 1,153.52 and 520.96

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Solution

The fourth proportional to 835.58, 1,153.52 and 520.96 is: 719.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.58 : 1,153.52 = 520.96 : x
  2. Step 2: Convert to fraction form
    835.58/1,153.52 = 520.96/x
  3. Step 3: Cross multiply
    835.58x = 1,153.52 × 520.96
  4. Step 4: Simplify right side
    835.58x = 600,937.78
  5. Step 5: Solve for x
    x = 600,937.78/835.58
  6. Step 6: Final answer
    x = 719.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.