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Finding the Fourth Proportional to 575.26, 857.34 and 570.46

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Solution

The fourth proportional to 575.26, 857.34 and 570.46 is: 850.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.26 : 857.34 = 570.46 : x
  2. Step 2: Convert to fraction form
    575.26/857.34 = 570.46/x
  3. Step 3: Cross multiply
    575.26x = 857.34 × 570.46
  4. Step 4: Simplify right side
    575.26x = 489,078.18
  5. Step 5: Solve for x
    x = 489,078.18/575.26
  6. Step 6: Final answer
    x = 850.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.