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Finding the Fourth Proportional to 603.39, 900.75 and 576.79

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Solution

The fourth proportional to 603.39, 900.75 and 576.79 is: 861.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.39 : 900.75 = 576.79 : x
  2. Step 2: Convert to fraction form
    603.39/900.75 = 576.79/x
  3. Step 3: Cross multiply
    603.39x = 900.75 × 576.79
  4. Step 4: Simplify right side
    603.39x = 519,543.59
  5. Step 5: Solve for x
    x = 519,543.59/603.39
  6. Step 6: Final answer
    x = 861.04

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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.