Home / 2,156,455.76-2,975,861.40-1,189,586.84

Finding the Fourth Proportional to 2,156,455.76, 2,975,861.40 and 1,189,586.84

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Solution

The fourth proportional to 2,156,455.76, 2,975,861.40 and 1,189,586.84 is: 1,641,603.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,455.76 : 2,975,861.40 = 1,189,586.84 : x
  2. Step 2: Convert to fraction form
    2,156,455.76/2,975,861.40 = 1,189,586.84/x
  3. Step 3: Cross multiply
    2,156,455.76x = 2,975,861.40 × 1,189,586.84
  4. Step 4: Simplify right side
    2,156,455.76x = 3,540,045,559,103.98
  5. Step 5: Solve for x
    x = 3,540,045,559,103.98/2,156,455.76
  6. Step 6: Final answer
    x = 1,641,603.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.