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Finding the Fourth Proportional to 594.28, 889.80 and 399.59

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Solution

The fourth proportional to 594.28, 889.80 and 399.59 is: 598.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.28 : 889.80 = 399.59 : x
  2. Step 2: Convert to fraction form
    594.28/889.80 = 399.59/x
  3. Step 3: Cross multiply
    594.28x = 889.80 × 399.59
  4. Step 4: Simplify right side
    594.28x = 355,555.18
  5. Step 5: Solve for x
    x = 355,555.18/594.28
  6. Step 6: Final answer
    x = 598.30

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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.