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Finding the Fourth Proportional to 704.94, 1,056.48 and 293.83

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Solution

The fourth proportional to 704.94, 1,056.48 and 293.83 is: 440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.94 : 1,056.48 = 293.83 : x
  2. Step 2: Convert to fraction form
    704.94/1,056.48 = 293.83/x
  3. Step 3: Cross multiply
    704.94x = 1,056.48 × 293.83
  4. Step 4: Simplify right side
    704.94x = 310,421.78
  5. Step 5: Solve for x
    x = 310,421.78/704.94
  6. Step 6: Final answer
    x = 440.35

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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.