Home / 1,040,133.45-1,557,089.77-978,616.65

Finding the Fourth Proportional to 1,040,133.45, 1,557,089.77 and 978,616.65

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Solution

The fourth proportional to 1,040,133.45, 1,557,089.77 and 978,616.65 is: 1,464,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,133.45 : 1,557,089.77 = 978,616.65 : x
  2. Step 2: Convert to fraction form
    1,040,133.45/1,557,089.77 = 978,616.65/x
  3. Step 3: Cross multiply
    1,040,133.45x = 1,557,089.77 × 978,616.65
  4. Step 4: Simplify right side
    1,040,133.45x = 1,523,793,974,466.67
  5. Step 5: Solve for x
    x = 1,523,793,974,466.67/1,040,133.45
  6. Step 6: Final answer
    x = 1,464,998.53

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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.