Home / 1,040,078.40-1,557,007.20-619,137.60

Finding the Fourth Proportional to 1,040,078.40, 1,557,007.20 and 619,137.60

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Solution

The fourth proportional to 1,040,078.40, 1,557,007.20 and 619,137.60 is: 926,854.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,078.40 : 1,557,007.20 = 619,137.60 : x
  2. Step 2: Convert to fraction form
    1,040,078.40/1,557,007.20 = 619,137.60/x
  3. Step 3: Cross multiply
    1,040,078.40x = 1,557,007.20 × 619,137.60
  4. Step 4: Simplify right side
    1,040,078.40x = 964,001,700,990.72
  5. Step 5: Solve for x
    x = 964,001,700,990.72/1,040,078.40
  6. Step 6: Final answer
    x = 926,854.84

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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.