Home / 1,212,803.70-1,819,205.55-1,077,501.30

Finding the Fourth Proportional to 1,212,803.70, 1,819,205.55 and 1,077,501.30

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Solution

The fourth proportional to 1,212,803.70, 1,819,205.55 and 1,077,501.30 is: 1,616,251.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,803.70 : 1,819,205.55 = 1,077,501.30 : x
  2. Step 2: Convert to fraction form
    1,212,803.70/1,819,205.55 = 1,077,501.30/x
  3. Step 3: Cross multiply
    1,212,803.70x = 1,819,205.55 × 1,077,501.30
  4. Step 4: Simplify right side
    1,212,803.70x = 1,960,196,345,092.22
  5. Step 5: Solve for x
    x = 1,960,196,345,092.22/1,212,803.70
  6. Step 6: Final answer
    x = 1,616,251.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.