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Finding the Fourth Proportional to 992.36, 1,370.03 and 599.51

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Solution

The fourth proportional to 992.36, 1,370.03 and 599.51 is: 827.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    992.36 : 1,370.03 = 599.51 : x
  2. Step 2: Convert to fraction form
    992.36/1,370.03 = 599.51/x
  3. Step 3: Cross multiply
    992.36x = 1,370.03 × 599.51
  4. Step 4: Simplify right side
    992.36x = 821,336.84
  5. Step 5: Solve for x
    x = 821,336.84/992.36
  6. Step 6: Final answer
    x = 827.66

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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.