Home / 1,561,187.72-2,154,410.97-882,109.64

Finding the Fourth Proportional to 1,561,187.72, 2,154,410.97 and 882,109.64

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Solution

The fourth proportional to 1,561,187.72, 2,154,410.97 and 882,109.64 is: 1,217,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,187.72 : 2,154,410.97 = 882,109.64 : x
  2. Step 2: Convert to fraction form
    1,561,187.72/2,154,410.97 = 882,109.64/x
  3. Step 3: Cross multiply
    1,561,187.72x = 2,154,410.97 × 882,109.64
  4. Step 4: Simplify right side
    1,561,187.72x = 1,900,426,685,158.75
  5. Step 5: Solve for x
    x = 1,900,426,685,158.75/1,561,187.72
  6. Step 6: Final answer
    x = 1,217,295.44

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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.