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Finding the Fourth Proportional to 1,041.00, 1,558.39 and 628.89

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Solution

The fourth proportional to 1,041.00, 1,558.39 and 628.89 is: 941.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.00 : 1,558.39 = 628.89 : x
  2. Step 2: Convert to fraction form
    1,041.00/1,558.39 = 628.89/x
  3. Step 3: Cross multiply
    1,041.00x = 1,558.39 × 628.89
  4. Step 4: Simplify right side
    1,041.00x = 980,054.03
  5. Step 5: Solve for x
    x = 980,054.03/1,041.00
  6. Step 6: Final answer
    x = 941.45

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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.