Home / 1,206,751.45-1,664,840.85-777,280.85

Finding the Fourth Proportional to 1,206,751.45, 1,664,840.85 and 777,280.85

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Solution

The fourth proportional to 1,206,751.45, 1,664,840.85 and 777,280.85 is: 1,072,340.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,751.45 : 1,664,840.85 = 777,280.85 : x
  2. Step 2: Convert to fraction form
    1,206,751.45/1,664,840.85 = 777,280.85/x
  3. Step 3: Cross multiply
    1,206,751.45x = 1,664,840.85 × 777,280.85
  4. Step 4: Simplify right side
    1,206,751.45x = 1,294,048,911,002.72
  5. Step 5: Solve for x
    x = 1,294,048,911,002.72/1,206,751.45
  6. Step 6: Final answer
    x = 1,072,340.88

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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.