Home / 1,172,861.92-1,618,552.56-636,317.92

Finding the Fourth Proportional to 1,172,861.92, 1,618,552.56 and 636,317.92

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Solution

The fourth proportional to 1,172,861.92, 1,618,552.56 and 636,317.92 is: 878,120.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,861.92 : 1,618,552.56 = 636,317.92 : x
  2. Step 2: Convert to fraction form
    1,172,861.92/1,618,552.56 = 636,317.92/x
  3. Step 3: Cross multiply
    1,172,861.92x = 1,618,552.56 × 636,317.92
  4. Step 4: Simplify right side
    1,172,861.92x = 1,029,913,998,389.88
  5. Step 5: Solve for x
    x = 1,029,913,998,389.88/1,172,861.92
  6. Step 6: Final answer
    x = 878,120.42

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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.