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Finding the Fourth Proportional to 603.99, 904.80 and 359.76

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Solution

The fourth proportional to 603.99, 904.80 and 359.76 is: 538.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.99 : 904.80 = 359.76 : x
  2. Step 2: Convert to fraction form
    603.99/904.80 = 359.76/x
  3. Step 3: Cross multiply
    603.99x = 904.80 × 359.76
  4. Step 4: Simplify right side
    603.99x = 325,510.85
  5. Step 5: Solve for x
    x = 325,510.85/603.99
  6. Step 6: Final answer
    x = 538.93

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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.