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Finding the Fourth Proportional to 914.52, 1,366.08 and 708.60

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Solution

The fourth proportional to 914.52, 1,366.08 and 708.60 is: 1,058.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.52 : 1,366.08 = 708.60 : x
  2. Step 2: Convert to fraction form
    914.52/1,366.08 = 708.60/x
  3. Step 3: Cross multiply
    914.52x = 1,366.08 × 708.60
  4. Step 4: Simplify right side
    914.52x = 968,004.29
  5. Step 5: Solve for x
    x = 968,004.29/914.52
  6. Step 6: Final answer
    x = 1,058.48

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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.