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Finding the Fourth Proportional to 673.70, 930.03 and 453.02

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Solution

The fourth proportional to 673.70, 930.03 and 453.02 is: 625.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.70 : 930.03 = 453.02 : x
  2. Step 2: Convert to fraction form
    673.70/930.03 = 453.02/x
  3. Step 3: Cross multiply
    673.70x = 930.03 × 453.02
  4. Step 4: Simplify right side
    673.70x = 421,317.54
  5. Step 5: Solve for x
    x = 421,317.54/673.70
  6. Step 6: Final answer
    x = 625.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.