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Finding the Fourth Proportional to 648.78, 971.57 and 594.16

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Solution

The fourth proportional to 648.78, 971.57 and 594.16 is: 889.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.78 : 971.57 = 594.16 : x
  2. Step 2: Convert to fraction form
    648.78/971.57 = 594.16/x
  3. Step 3: Cross multiply
    648.78x = 971.57 × 594.16
  4. Step 4: Simplify right side
    648.78x = 577,268.03
  5. Step 5: Solve for x
    x = 577,268.03/648.78
  6. Step 6: Final answer
    x = 889.77

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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.