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Finding the Fourth Proportional to 589.04, 812.64 and 367.92

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Solution

The fourth proportional to 589.04, 812.64 and 367.92 is: 507.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.04 : 812.64 = 367.92 : x
  2. Step 2: Convert to fraction form
    589.04/812.64 = 367.92/x
  3. Step 3: Cross multiply
    589.04x = 812.64 × 367.92
  4. Step 4: Simplify right side
    589.04x = 298,986.51
  5. Step 5: Solve for x
    x = 298,986.51/589.04
  6. Step 6: Final answer
    x = 507.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.