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Finding the Fourth Proportional to 904.01, 1,246.84 and 572.36

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Solution

The fourth proportional to 904.01, 1,246.84 and 572.36 is: 789.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.01 : 1,246.84 = 572.36 : x
  2. Step 2: Convert to fraction form
    904.01/1,246.84 = 572.36/x
  3. Step 3: Cross multiply
    904.01x = 1,246.84 × 572.36
  4. Step 4: Simplify right side
    904.01x = 713,633.68
  5. Step 5: Solve for x
    x = 713,633.68/904.01
  6. Step 6: Final answer
    x = 789.41

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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.