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Finding the Fourth Proportional to 575.84, 794.40 and 354.80

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Solution

The fourth proportional to 575.84, 794.40 and 354.80 is: 489.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.84 : 794.40 = 354.80 : x
  2. Step 2: Convert to fraction form
    575.84/794.40 = 354.80/x
  3. Step 3: Cross multiply
    575.84x = 794.40 × 354.80
  4. Step 4: Simplify right side
    575.84x = 281,853.12
  5. Step 5: Solve for x
    x = 281,853.12/575.84
  6. Step 6: Final answer
    x = 489.46

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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.