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Finding the Fourth Proportional to 569.43, 858.87 and 501.81

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Solution

The fourth proportional to 569.43, 858.87 and 501.81 is: 756.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.43 : 858.87 = 501.81 : x
  2. Step 2: Convert to fraction form
    569.43/858.87 = 501.81/x
  3. Step 3: Cross multiply
    569.43x = 858.87 × 501.81
  4. Step 4: Simplify right side
    569.43x = 430,989.55
  5. Step 5: Solve for x
    x = 430,989.55/569.43
  6. Step 6: Final answer
    x = 756.88

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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.