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Finding the Fourth Proportional to 1,186.18, 1,780.36 and 601.59

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Solution

The fourth proportional to 1,186.18, 1,780.36 and 601.59 is: 902.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186.18 : 1,780.36 = 601.59 : x
  2. Step 2: Convert to fraction form
    1,186.18/1,780.36 = 601.59/x
  3. Step 3: Cross multiply
    1,186.18x = 1,780.36 × 601.59
  4. Step 4: Simplify right side
    1,186.18x = 1,071,044.55
  5. Step 5: Solve for x
    x = 1,071,044.55/1,186.18
  6. Step 6: Final answer
    x = 902.94

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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.