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Finding the Fourth Proportional to 804.96, 1,111.19 and 543.33

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Solution

The fourth proportional to 804.96, 1,111.19 and 543.33 is: 750.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.96 : 1,111.19 = 543.33 : x
  2. Step 2: Convert to fraction form
    804.96/1,111.19 = 543.33/x
  3. Step 3: Cross multiply
    804.96x = 1,111.19 × 543.33
  4. Step 4: Simplify right side
    804.96x = 603,740.15
  5. Step 5: Solve for x
    x = 603,740.15/804.96
  6. Step 6: Final answer
    x = 750.03

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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.