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Finding the Fourth Proportional to 592.72, 889.08 and 409.66

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Solution

The fourth proportional to 592.72, 889.08 and 409.66 is: 614.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.72 : 889.08 = 409.66 : x
  2. Step 2: Convert to fraction form
    592.72/889.08 = 409.66/x
  3. Step 3: Cross multiply
    592.72x = 889.08 × 409.66
  4. Step 4: Simplify right side
    592.72x = 364,220.51
  5. Step 5: Solve for x
    x = 364,220.51/592.72
  6. Step 6: Final answer
    x = 614.49

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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.