Home / 1,206,012.56-1,807,318.08-666,511.80

Finding the Fourth Proportional to 1,206,012.56, 1,807,318.08 and 666,511.80

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Solution

The fourth proportional to 1,206,012.56, 1,807,318.08 and 666,511.80 is: 998,827.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,012.56 : 1,807,318.08 = 666,511.80 : x
  2. Step 2: Convert to fraction form
    1,206,012.56/1,807,318.08 = 666,511.80/x
  3. Step 3: Cross multiply
    1,206,012.56x = 1,807,318.08 × 666,511.80
  4. Step 4: Simplify right side
    1,206,012.56x = 1,204,598,826,673.34
  5. Step 5: Solve for x
    x = 1,204,598,826,673.34/1,206,012.56
  6. Step 6: Final answer
    x = 998,827.76

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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.