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Finding the Fourth Proportional to 933.04, 1,398.81 and 604.31

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Solution

The fourth proportional to 933.04, 1,398.81 and 604.31 is: 905.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.04 : 1,398.81 = 604.31 : x
  2. Step 2: Convert to fraction form
    933.04/1,398.81 = 604.31/x
  3. Step 3: Cross multiply
    933.04x = 1,398.81 × 604.31
  4. Step 4: Simplify right side
    933.04x = 845,314.87
  5. Step 5: Solve for x
    x = 845,314.87/933.04
  6. Step 6: Final answer
    x = 905.98

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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.