Home / 904.03-1,355.27-356.09

Finding the Fourth Proportional to 904.03, 1,355.27 and 356.09

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Solution

The fourth proportional to 904.03, 1,355.27 and 356.09 is: 533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.03 : 1,355.27 = 356.09 : x
  2. Step 2: Convert to fraction form
    904.03/1,355.27 = 356.09/x
  3. Step 3: Cross multiply
    904.03x = 1,355.27 × 356.09
  4. Step 4: Simplify right side
    904.03x = 482,589.54
  5. Step 5: Solve for x
    x = 482,589.54/904.03
  6. Step 6: Final answer
    x = 533.82

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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.