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Finding the Fourth Proportional to 738,909, 1,108,018.98 and 383,827.68

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Solution

The fourth proportional to 738,909, 1,108,018.98 and 383,827.68 is: 575,562.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,909 : 1,108,018.98 = 383,827.68 : x
  2. Step 2: Convert to fraction form
    738,909/1,108,018.98 = 383,827.68/x
  3. Step 3: Cross multiply
    738,909x = 1,108,018.98 × 383,827.68
  4. Step 4: Simplify right side
    738,909x = 425,288,354,489.37
  5. Step 5: Solve for x
    x = 425,288,354,489.37/738,909
  6. Step 6: Final answer
    x = 575,562.56

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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.