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Finding the Fourth Proportional to 576,545.48, 795,634.30 and 321,905.78

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Solution

The fourth proportional to 576,545.48, 795,634.30 and 321,905.78 is: 444,230.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,545.48 : 795,634.30 = 321,905.78 : x
  2. Step 2: Convert to fraction form
    576,545.48/795,634.30 = 321,905.78/x
  3. Step 3: Cross multiply
    576,545.48x = 795,634.30 × 321,905.78
  4. Step 4: Simplify right side
    576,545.48x = 256,119,275,153.32
  5. Step 5: Solve for x
    x = 256,119,275,153.32/576,545.48
  6. Step 6: Final answer
    x = 444,230.83

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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.