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Finding the Fourth Proportional to 603.55, 900.88 and 559.59

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Solution

The fourth proportional to 603.55, 900.88 and 559.59 is: 835.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.55 : 900.88 = 559.59 : x
  2. Step 2: Convert to fraction form
    603.55/900.88 = 559.59/x
  3. Step 3: Cross multiply
    603.55x = 900.88 × 559.59
  4. Step 4: Simplify right side
    603.55x = 504,116.14
  5. Step 5: Solve for x
    x = 504,116.14/603.55
  6. Step 6: Final answer
    x = 835.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.