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Finding the Fourth Proportional to 807.04, 1,112.64 and 573.76

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Solution

The fourth proportional to 807.04, 1,112.64 and 573.76 is: 791.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    807.04 : 1,112.64 = 573.76 : x
  2. Step 2: Convert to fraction form
    807.04/1,112.64 = 573.76/x
  3. Step 3: Cross multiply
    807.04x = 1,112.64 × 573.76
  4. Step 4: Simplify right side
    807.04x = 638,388.33
  5. Step 5: Solve for x
    x = 638,388.33/807.04
  6. Step 6: Final answer
    x = 791.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.