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Finding the Fourth Proportional to 606,871.36, 909,545.85 and 321,858.44

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Solution

The fourth proportional to 606,871.36, 909,545.85 and 321,858.44 is: 482,383.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,871.36 : 909,545.85 = 321,858.44 : x
  2. Step 2: Convert to fraction form
    606,871.36/909,545.85 = 321,858.44/x
  3. Step 3: Cross multiply
    606,871.36x = 909,545.85 × 321,858.44
  4. Step 4: Simplify right side
    606,871.36x = 292,745,008,389.47
  5. Step 5: Solve for x
    x = 292,745,008,389.47/606,871.36
  6. Step 6: Final answer
    x = 482,383.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.