Home / 1,219,591.12-1,829,040.96-769,637.92

Finding the Fourth Proportional to 1,219,591.12, 1,829,040.96 and 769,637.92

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Solution

The fourth proportional to 1,219,591.12, 1,829,040.96 and 769,637.92 is: 1,154,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,591.12 : 1,829,040.96 = 769,637.92 : x
  2. Step 2: Convert to fraction form
    1,219,591.12/1,829,040.96 = 769,637.92/x
  3. Step 3: Cross multiply
    1,219,591.12x = 1,829,040.96 × 769,637.92
  4. Step 4: Simplify right side
    1,219,591.12x = 1,407,699,280,049.20
  5. Step 5: Solve for x
    x = 1,407,699,280,049.20/1,219,591.12
  6. Step 6: Final answer
    x = 1,154,238.71

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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.