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Finding the Fourth Proportional to 1,033.11, 1,425.28 and 590.67

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Solution

The fourth proportional to 1,033.11, 1,425.28 and 590.67 is: 814.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.11 : 1,425.28 = 590.67 : x
  2. Step 2: Convert to fraction form
    1,033.11/1,425.28 = 590.67/x
  3. Step 3: Cross multiply
    1,033.11x = 1,425.28 × 590.67
  4. Step 4: Simplify right side
    1,033.11x = 841,870.14
  5. Step 5: Solve for x
    x = 841,870.14/1,033.11
  6. Step 6: Final answer
    x = 814.89

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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.