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Finding the Fourth Proportional to 673.95, 930.56 and 543.54

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Solution

The fourth proportional to 673.95, 930.56 and 543.54 is: 750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.95 : 930.56 = 543.54 : x
  2. Step 2: Convert to fraction form
    673.95/930.56 = 543.54/x
  3. Step 3: Cross multiply
    673.95x = 930.56 × 543.54
  4. Step 4: Simplify right side
    673.95x = 505,796.58
  5. Step 5: Solve for x
    x = 505,796.58/673.95
  6. Step 6: Final answer
    x = 750.50

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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.