Home / 1,285,216.80-1,771,385.40-854,727.72

Finding the Fourth Proportional to 1,285,216.80, 1,771,385.40 and 854,727.72

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Solution

The fourth proportional to 1,285,216.80, 1,771,385.40 and 854,727.72 is: 1,178,051.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,216.80 : 1,771,385.40 = 854,727.72 : x
  2. Step 2: Convert to fraction form
    1,285,216.80/1,771,385.40 = 854,727.72/x
  3. Step 3: Cross multiply
    1,285,216.80x = 1,771,385.40 × 854,727.72
  4. Step 4: Simplify right side
    1,285,216.80x = 1,514,052,204,183.29
  5. Step 5: Solve for x
    x = 1,514,052,204,183.29/1,285,216.80
  6. Step 6: Final answer
    x = 1,178,051.99

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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.