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Finding the Fourth Proportional to 1,330.35, 1,995.45 and 589.75

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Solution

The fourth proportional to 1,330.35, 1,995.45 and 589.75 is: 884.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.35 : 1,995.45 = 589.75 : x
  2. Step 2: Convert to fraction form
    1,330.35/1,995.45 = 589.75/x
  3. Step 3: Cross multiply
    1,330.35x = 1,995.45 × 589.75
  4. Step 4: Simplify right side
    1,330.35x = 1,176,816.64
  5. Step 5: Solve for x
    x = 1,176,816.64/1,330.35
  6. Step 6: Final answer
    x = 884.59

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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.