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Finding the Fourth Proportional to 534,018.30, 800,379.45 and 308,946.30

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Solution

The fourth proportional to 534,018.30, 800,379.45 and 308,946.30 is: 463,044.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,018.30 : 800,379.45 = 308,946.30 : x
  2. Step 2: Convert to fraction form
    534,018.30/800,379.45 = 308,946.30/x
  3. Step 3: Cross multiply
    534,018.30x = 800,379.45 × 308,946.30
  4. Step 4: Simplify right side
    534,018.30x = 247,274,269,673.54
  5. Step 5: Solve for x
    x = 247,274,269,673.54/534,018.30
  6. Step 6: Final answer
    x = 463,044.56

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1.5x scale

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.