Home / 1,211,469.40-1,815,017.10-705,616.30

Finding the Fourth Proportional to 1,211,469.40, 1,815,017.10 and 705,616.30

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Solution

The fourth proportional to 1,211,469.40, 1,815,017.10 and 705,616.30 is: 1,057,150.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,469.40 : 1,815,017.10 = 705,616.30 : x
  2. Step 2: Convert to fraction form
    1,211,469.40/1,815,017.10 = 705,616.30/x
  3. Step 3: Cross multiply
    1,211,469.40x = 1,815,017.10 × 705,616.30
  4. Step 4: Simplify right side
    1,211,469.40x = 1,280,705,650,538.73
  5. Step 5: Solve for x
    x = 1,280,705,650,538.73/1,211,469.40
  6. Step 6: Final answer
    x = 1,057,150.64

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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.