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Finding the Fourth Proportional to 904.05, 1,346.74 and 882.45

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Solution

The fourth proportional to 904.05, 1,346.74 and 882.45 is: 1,314.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.05 : 1,346.74 = 882.45 : x
  2. Step 2: Convert to fraction form
    904.05/1,346.74 = 882.45/x
  3. Step 3: Cross multiply
    904.05x = 1,346.74 × 882.45
  4. Step 4: Simplify right side
    904.05x = 1,188,428.51
  5. Step 5: Solve for x
    x = 1,188,428.51/904.05
  6. Step 6: Final answer
    x = 1,314.56

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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.