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Finding the Fourth Proportional to 1,303.45, 1,798.91 and 744.06

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Solution

The fourth proportional to 1,303.45, 1,798.91 and 744.06 is: 1,026.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303.45 : 1,798.91 = 744.06 : x
  2. Step 2: Convert to fraction form
    1,303.45/1,798.91 = 744.06/x
  3. Step 3: Cross multiply
    1,303.45x = 1,798.91 × 744.06
  4. Step 4: Simplify right side
    1,303.45x = 1,338,496.97
  5. Step 5: Solve for x
    x = 1,338,496.97/1,303.45
  6. Step 6: Final answer
    x = 1,026.89

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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.