Home / 1,579,074.10-2,179,123.20-853,921.78

Finding the Fourth Proportional to 1,579,074.10, 2,179,123.20 and 853,921.78

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Solution

The fourth proportional to 1,579,074.10, 2,179,123.20 and 853,921.78 is: 1,178,412.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579,074.10 : 2,179,123.20 = 853,921.78 : x
  2. Step 2: Convert to fraction form
    1,579,074.10/2,179,123.20 = 853,921.78/x
  3. Step 3: Cross multiply
    1,579,074.10x = 2,179,123.20 × 853,921.78
  4. Step 4: Simplify right side
    1,579,074.10x = 1,860,800,756,335.49
  5. Step 5: Solve for x
    x = 1,860,800,756,335.49/1,579,074.10
  6. Step 6: Final answer
    x = 1,178,412.56

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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.