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Finding the Fourth Proportional to 569.61, 850.08 and 555.03

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Solution

The fourth proportional to 569.61, 850.08 and 555.03 is: 828.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.61 : 850.08 = 555.03 : x
  2. Step 2: Convert to fraction form
    569.61/850.08 = 555.03/x
  3. Step 3: Cross multiply
    569.61x = 850.08 × 555.03
  4. Step 4: Simplify right side
    569.61x = 471,819.90
  5. Step 5: Solve for x
    x = 471,819.90/569.61
  6. Step 6: Final answer
    x = 828.32

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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.