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Finding the Fourth Proportional to 569.36, 858.31 and 531.74

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Solution

The fourth proportional to 569.36, 858.31 and 531.74 is: 801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.36 : 858.31 = 531.74 : x
  2. Step 2: Convert to fraction form
    569.36/858.31 = 531.74/x
  3. Step 3: Cross multiply
    569.36x = 858.31 × 531.74
  4. Step 4: Simplify right side
    569.36x = 456,398.58
  5. Step 5: Solve for x
    x = 456,398.58/569.36
  6. Step 6: Final answer
    x = 801.60

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.