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Finding the Fourth Proportional to 1,187.33, 1,780.08 and 601.85

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Solution

The fourth proportional to 1,187.33, 1,780.08 and 601.85 is: 902.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187.33 : 1,780.08 = 601.85 : x
  2. Step 2: Convert to fraction form
    1,187.33/1,780.08 = 601.85/x
  3. Step 3: Cross multiply
    1,187.33x = 1,780.08 × 601.85
  4. Step 4: Simplify right side
    1,187.33x = 1,071,333.33
  5. Step 5: Solve for x
    x = 1,071,333.33/1,187.33
  6. Step 6: Final answer
    x = 902.31

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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.