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Finding the Fourth Proportional to 576,456.40, 795,427.56 and 321,802

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Solution

The fourth proportional to 576,456.40, 795,427.56 and 321,802 is: 444,040.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,456.40 : 795,427.56 = 321,802 : x
  2. Step 2: Convert to fraction form
    576,456.40/795,427.56 = 321,802/x
  3. Step 3: Cross multiply
    576,456.40x = 795,427.56 × 321,802
  4. Step 4: Simplify right side
    576,456.40x = 255,970,179,663.12
  5. Step 5: Solve for x
    x = 255,970,179,663.12/576,456.40
  6. Step 6: Final answer
    x = 444,040.83

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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.