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Finding the Fourth Proportional to 1,088.44, 1,502.04 and 622.69

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Solution

The fourth proportional to 1,088.44, 1,502.04 and 622.69 is: 859.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.44 : 1,502.04 = 622.69 : x
  2. Step 2: Convert to fraction form
    1,088.44/1,502.04 = 622.69/x
  3. Step 3: Cross multiply
    1,088.44x = 1,502.04 × 622.69
  4. Step 4: Simplify right side
    1,088.44x = 935,303.87
  5. Step 5: Solve for x
    x = 935,303.87/1,088.44
  6. Step 6: Final answer
    x = 859.31

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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.