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Finding the Fourth Proportional to 575.64, 794.85 and 469.31

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Solution

The fourth proportional to 575.64, 794.85 and 469.31 is: 648.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.64 : 794.85 = 469.31 : x
  2. Step 2: Convert to fraction form
    575.64/794.85 = 469.31/x
  3. Step 3: Cross multiply
    575.64x = 794.85 × 469.31
  4. Step 4: Simplify right side
    575.64x = 373,026.72
  5. Step 5: Solve for x
    x = 373,026.72/575.64
  6. Step 6: Final answer
    x = 648.03

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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.