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Finding the Fourth Proportional to 569.89, 855.56 and 484.93

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Solution

The fourth proportional to 569.89, 855.56 and 484.93 is: 728.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.89 : 855.56 = 484.93 : x
  2. Step 2: Convert to fraction form
    569.89/855.56 = 484.93/x
  3. Step 3: Cross multiply
    569.89x = 855.56 × 484.93
  4. Step 4: Simplify right side
    569.89x = 414,886.71
  5. Step 5: Solve for x
    x = 414,886.71/569.89
  6. Step 6: Final answer
    x = 728.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.