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Finding the Fourth Proportional to 763,800.08, 1,146,024.12 and 408,722

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Solution

The fourth proportional to 763,800.08, 1,146,024.12 and 408,722 is: 613,256.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,800.08 : 1,146,024.12 = 408,722 : x
  2. Step 2: Convert to fraction form
    763,800.08/1,146,024.12 = 408,722/x
  3. Step 3: Cross multiply
    763,800.08x = 1,146,024.12 × 408,722
  4. Step 4: Simplify right side
    763,800.08x = 468,405,270,374.64
  5. Step 5: Solve for x
    x = 468,405,270,374.64/763,800.08
  6. Step 6: Final answer
    x = 613,256.38

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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.