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Finding the Fourth Proportional to 568.04, 783.93 and 427.91

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Solution

The fourth proportional to 568.04, 783.93 and 427.91 is: 590.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.04 : 783.93 = 427.91 : x
  2. Step 2: Convert to fraction form
    568.04/783.93 = 427.91/x
  3. Step 3: Cross multiply
    568.04x = 783.93 × 427.91
  4. Step 4: Simplify right side
    568.04x = 335,449.53
  5. Step 5: Solve for x
    x = 335,449.53/568.04
  6. Step 6: Final answer
    x = 590.54

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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.