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Finding the Fourth Proportional to 790.09, 1,184.37 and 443.59

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Solution

The fourth proportional to 790.09, 1,184.37 and 443.59 is: 664.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    790.09 : 1,184.37 = 443.59 : x
  2. Step 2: Convert to fraction form
    790.09/1,184.37 = 443.59/x
  3. Step 3: Cross multiply
    790.09x = 1,184.37 × 443.59
  4. Step 4: Simplify right side
    790.09x = 525,374.69
  5. Step 5: Solve for x
    x = 525,374.69/790.09
  6. Step 6: Final answer
    x = 664.96

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1.5x scale

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.