Home / 1,189,116.65-1,783,947.44-515,311.07

Finding the Fourth Proportional to 1,189,116.65, 1,783,947.44 and 515,311.07

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Solution

The fourth proportional to 1,189,116.65, 1,783,947.44 and 515,311.07 is: 773,084.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,116.65 : 1,783,947.44 = 515,311.07 : x
  2. Step 2: Convert to fraction form
    1,189,116.65/1,783,947.44 = 515,311.07/x
  3. Step 3: Cross multiply
    1,189,116.65x = 1,783,947.44 × 515,311.07
  4. Step 4: Simplify right side
    1,189,116.65x = 919,287,856,498.70
  5. Step 5: Solve for x
    x = 919,287,856,498.70/1,189,116.65
  6. Step 6: Final answer
    x = 773,084.67

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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.