Home / 1,285,211.52-1,773,800.64-1,228,515.84

Finding the Fourth Proportional to 1,285,211.52, 1,773,800.64 and 1,228,515.84

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Solution

The fourth proportional to 1,285,211.52, 1,773,800.64 and 1,228,515.84 is: 1,695,551.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,211.52 : 1,773,800.64 = 1,228,515.84 : x
  2. Step 2: Convert to fraction form
    1,285,211.52/1,773,800.64 = 1,228,515.84/x
  3. Step 3: Cross multiply
    1,285,211.52x = 1,773,800.64 × 1,228,515.84
  4. Step 4: Simplify right side
    1,285,211.52x = 2,179,142,183,242.14
  5. Step 5: Solve for x
    x = 2,179,142,183,242.14/1,285,211.52
  6. Step 6: Final answer
    x = 1,695,551.39

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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.