Home / 1,145,676.39-1,581,083.46-636,378.77

Finding the Fourth Proportional to 1,145,676.39, 1,581,083.46 and 636,378.77

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Solution

The fourth proportional to 1,145,676.39, 1,581,083.46 and 636,378.77 is: 878,230.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,676.39 : 1,581,083.46 = 636,378.77 : x
  2. Step 2: Convert to fraction form
    1,145,676.39/1,581,083.46 = 636,378.77/x
  3. Step 3: Cross multiply
    1,145,676.39x = 1,581,083.46 × 636,378.77
  4. Step 4: Simplify right side
    1,145,676.39x = 1,006,167,939,636.73
  5. Step 5: Solve for x
    x = 1,006,167,939,636.73/1,145,676.39
  6. Step 6: Final answer
    x = 878,230.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.