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Finding the Fourth Proportional to 593, 889.18 and 387.64

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Solution

The fourth proportional to 593, 889.18 and 387.64 is: 581.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    593 : 889.18 = 387.64 : x
  2. Step 2: Convert to fraction form
    593/889.18 = 387.64/x
  3. Step 3: Cross multiply
    593x = 889.18 × 387.64
  4. Step 4: Simplify right side
    593x = 344,681.74
  5. Step 5: Solve for x
    x = 344,681.74/593
  6. Step 6: Final answer
    x = 581.25

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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.