Home / 1,172,813.92-1,618,486.32-636,269.92

Finding the Fourth Proportional to 1,172,813.92, 1,618,486.32 and 636,269.92

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Solution

The fourth proportional to 1,172,813.92, 1,618,486.32 and 636,269.92 is: 878,054.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,813.92 : 1,618,486.32 = 636,269.92 : x
  2. Step 2: Convert to fraction form
    1,172,813.92/1,618,486.32 = 636,269.92/x
  3. Step 3: Cross multiply
    1,172,813.92x = 1,618,486.32 × 636,269.92
  4. Step 4: Simplify right side
    1,172,813.92x = 1,029,794,161,347.49
  5. Step 5: Solve for x
    x = 1,029,794,161,347.49/1,172,813.92
  6. Step 6: Final answer
    x = 878,054.18

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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.