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Finding the Fourth Proportional to 579.07, 799.14 and 330.45

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Solution

The fourth proportional to 579.07, 799.14 and 330.45 is: 456.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.07 : 799.14 = 330.45 : x
  2. Step 2: Convert to fraction form
    579.07/799.14 = 330.45/x
  3. Step 3: Cross multiply
    579.07x = 799.14 × 330.45
  4. Step 4: Simplify right side
    579.07x = 264,075.81
  5. Step 5: Solve for x
    x = 264,075.81/579.07
  6. Step 6: Final answer
    x = 456.03

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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.