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Finding the Fourth Proportional to 904.54, 1,355.46 and 673.06

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Solution

The fourth proportional to 904.54, 1,355.46 and 673.06 is: 1,008.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.54 : 1,355.46 = 673.06 : x
  2. Step 2: Convert to fraction form
    904.54/1,355.46 = 673.06/x
  3. Step 3: Cross multiply
    904.54x = 1,355.46 × 673.06
  4. Step 4: Simplify right side
    904.54x = 912,305.91
  5. Step 5: Solve for x
    x = 912,305.91/904.54
  6. Step 6: Final answer
    x = 1,008.59

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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.