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Finding the Fourth Proportional to 897.62, 1,238.55 and 524.66

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Solution

The fourth proportional to 897.62, 1,238.55 and 524.66 is: 723.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    897.62 : 1,238.55 = 524.66 : x
  2. Step 2: Convert to fraction form
    897.62/1,238.55 = 524.66/x
  3. Step 3: Cross multiply
    897.62x = 1,238.55 × 524.66
  4. Step 4: Simplify right side
    897.62x = 649,817.64
  5. Step 5: Solve for x
    x = 649,817.64/897.62
  6. Step 6: Final answer
    x = 723.93

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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.