Home / 1,863,171.20-2,792,913.60-915,766.40

Finding the Fourth Proportional to 1,863,171.20, 2,792,913.60 and 915,766.40

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Solution

The fourth proportional to 1,863,171.20, 2,792,913.60 and 915,766.40 is: 1,372,743.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863,171.20 : 2,792,913.60 = 915,766.40 : x
  2. Step 2: Convert to fraction form
    1,863,171.20/2,792,913.60 = 915,766.40/x
  3. Step 3: Cross multiply
    1,863,171.20x = 2,792,913.60 × 915,766.40
  4. Step 4: Simplify right side
    1,863,171.20x = 2,557,656,432,983.04
  5. Step 5: Solve for x
    x = 2,557,656,432,983.04/1,863,171.20
  6. Step 6: Final answer
    x = 1,372,743.65

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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.