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Finding the Fourth Proportional to 636,288.90, 954,383.73 and 369,879.50

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Solution

The fourth proportional to 636,288.90, 954,383.73 and 369,879.50 is: 554,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,288.90 : 954,383.73 = 369,879.50 : x
  2. Step 2: Convert to fraction form
    636,288.90/954,383.73 = 369,879.50/x
  3. Step 3: Cross multiply
    636,288.90x = 954,383.73 × 369,879.50
  4. Step 4: Simplify right side
    636,288.90x = 353,006,972,088.62
  5. Step 5: Solve for x
    x = 353,006,972,088.62/636,288.90
  6. Step 6: Final answer
    x = 554,790.40

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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.