Home / 777,660.75-1,166,950.40-328,352.54

Finding the Fourth Proportional to 777,660.75, 1,166,950.40 and 328,352.54

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Solution

The fourth proportional to 777,660.75, 1,166,950.40 and 328,352.54 is: 492,722.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,660.75 : 1,166,950.40 = 328,352.54 : x
  2. Step 2: Convert to fraction form
    777,660.75/1,166,950.40 = 328,352.54/x
  3. Step 3: Cross multiply
    777,660.75x = 1,166,950.40 × 328,352.54
  4. Step 4: Simplify right side
    777,660.75x = 383,171,120,417.50
  5. Step 5: Solve for x
    x = 383,171,120,417.50/777,660.75
  6. Step 6: Final answer
    x = 492,722.72

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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.