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Finding the Fourth Proportional to 582.44, 804.05 and 393.44

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Solution

The fourth proportional to 582.44, 804.05 and 393.44 is: 543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.44 : 804.05 = 393.44 : x
  2. Step 2: Convert to fraction form
    582.44/804.05 = 393.44/x
  3. Step 3: Cross multiply
    582.44x = 804.05 × 393.44
  4. Step 4: Simplify right side
    582.44x = 316,341.41
  5. Step 5: Solve for x
    x = 316,341.41/582.44
  6. Step 6: Final answer
    x = 543.13

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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.