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Finding the Fourth Proportional to 1,030.57, 1,422.06 and 588.44

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Solution

The fourth proportional to 1,030.57, 1,422.06 and 588.44 is: 811.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.57 : 1,422.06 = 588.44 : x
  2. Step 2: Convert to fraction form
    1,030.57/1,422.06 = 588.44/x
  3. Step 3: Cross multiply
    1,030.57x = 1,422.06 × 588.44
  4. Step 4: Simplify right side
    1,030.57x = 836,796.99
  5. Step 5: Solve for x
    x = 836,796.99/1,030.57
  6. Step 6: Final answer
    x = 811.97

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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.