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Finding the Fourth Proportional to 582.89, 804.40 and 317.34

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Solution

The fourth proportional to 582.89, 804.40 and 317.34 is: 437.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.89 : 804.40 = 317.34 : x
  2. Step 2: Convert to fraction form
    582.89/804.40 = 317.34/x
  3. Step 3: Cross multiply
    582.89x = 804.40 × 317.34
  4. Step 4: Simplify right side
    582.89x = 255,271.52
  5. Step 5: Solve for x
    x = 255,271.52/582.89
  6. Step 6: Final answer
    x = 437.94

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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.