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Finding the Fourth Proportional to 636,426.56, 954,009.26 and 298,862.96

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Solution

The fourth proportional to 636,426.56, 954,009.26 and 298,862.96 is: 447,998.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,426.56 : 954,009.26 = 298,862.96 : x
  2. Step 2: Convert to fraction form
    636,426.56/954,009.26 = 298,862.96/x
  3. Step 3: Cross multiply
    636,426.56x = 954,009.26 × 298,862.96
  4. Step 4: Simplify right side
    636,426.56x = 285,118,032,201.72
  5. Step 5: Solve for x
    x = 285,118,032,201.72/636,426.56
  6. Step 6: Final answer
    x = 447,998.32

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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.