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Finding the Fourth Proportional to 1,054.47, 1,581.66 and 568.47

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Solution

The fourth proportional to 1,054.47, 1,581.66 and 568.47 is: 852.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.47 : 1,581.66 = 568.47 : x
  2. Step 2: Convert to fraction form
    1,054.47/1,581.66 = 568.47/x
  3. Step 3: Cross multiply
    1,054.47x = 1,581.66 × 568.47
  4. Step 4: Simplify right side
    1,054.47x = 899,126.26
  5. Step 5: Solve for x
    x = 899,126.26/1,054.47
  6. Step 6: Final answer
    x = 852.68

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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.