Home / 1,191,000.80-1,786,501.20-1,019,758.70

Finding the Fourth Proportional to 1,191,000.80, 1,786,501.20 and 1,019,758.70

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Solution

The fourth proportional to 1,191,000.80, 1,786,501.20 and 1,019,758.70 is: 1,529,638.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,000.80 : 1,786,501.20 = 1,019,758.70 : x
  2. Step 2: Convert to fraction form
    1,191,000.80/1,786,501.20 = 1,019,758.70/x
  3. Step 3: Cross multiply
    1,191,000.80x = 1,786,501.20 × 1,019,758.70
  4. Step 4: Simplify right side
    1,191,000.80x = 1,821,800,141,260.44
  5. Step 5: Solve for x
    x = 1,821,800,141,260.44/1,191,000.80
  6. Step 6: Final answer
    x = 1,529,638.05

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Similar ratio
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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.