Home / 1,211,511.96-1,816,110.72-453,147.84

Finding the Fourth Proportional to 1,211,511.96, 1,816,110.72 and 453,147.84

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Solution

The fourth proportional to 1,211,511.96, 1,816,110.72 and 453,147.84 is: 679,288.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,511.96 : 1,816,110.72 = 453,147.84 : x
  2. Step 2: Convert to fraction form
    1,211,511.96/1,816,110.72 = 453,147.84/x
  3. Step 3: Cross multiply
    1,211,511.96x = 1,816,110.72 × 453,147.84
  4. Step 4: Simplify right side
    1,211,511.96x = 822,966,649,968.85
  5. Step 5: Solve for x
    x = 822,966,649,968.85/1,211,511.96
  6. Step 6: Final answer
    x = 679,288.92

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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.