Home / 1,630,857.78-2,250,379.92-905,606.88

Finding the Fourth Proportional to 1,630,857.78, 2,250,379.92 and 905,606.88

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Solution

The fourth proportional to 1,630,857.78, 2,250,379.92 and 905,606.88 is: 1,249,624.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630,857.78 : 2,250,379.92 = 905,606.88 : x
  2. Step 2: Convert to fraction form
    1,630,857.78/2,250,379.92 = 905,606.88/x
  3. Step 3: Cross multiply
    1,630,857.78x = 2,250,379.92 × 905,606.88
  4. Step 4: Simplify right side
    1,630,857.78x = 2,037,959,538,165.85
  5. Step 5: Solve for x
    x = 2,037,959,538,165.85/1,630,857.78
  6. Step 6: Final answer
    x = 1,249,624.32

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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.