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Finding the Fourth Proportional to 590.80, 884.40 and 346.60

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Solution

The fourth proportional to 590.80, 884.40 and 346.60 is: 518.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.80 : 884.40 = 346.60 : x
  2. Step 2: Convert to fraction form
    590.80/884.40 = 346.60/x
  3. Step 3: Cross multiply
    590.80x = 884.40 × 346.60
  4. Step 4: Simplify right side
    590.80x = 306,533.04
  5. Step 5: Solve for x
    x = 306,533.04/590.80
  6. Step 6: Final answer
    x = 518.84

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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.