Home / 1,206,006.56-1,807,309.10-666,505.78

Finding the Fourth Proportional to 1,206,006.56, 1,807,309.10 and 666,505.78

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Solution

The fourth proportional to 1,206,006.56, 1,807,309.10 and 666,505.78 is: 998,818.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,006.56 : 1,807,309.10 = 666,505.78 : x
  2. Step 2: Convert to fraction form
    1,206,006.56/1,807,309.10 = 666,505.78/x
  3. Step 3: Cross multiply
    1,206,006.56x = 1,807,309.10 × 666,505.78
  4. Step 4: Simplify right side
    1,206,006.56x = 1,204,581,949,027.52
  5. Step 5: Solve for x
    x = 1,204,581,949,027.52/1,206,006.56
  6. Step 6: Final answer
    x = 998,818.74

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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.