Home / 1,328,004.60-1,992,006.90-768,132.60

Finding the Fourth Proportional to 1,328,004.60, 1,992,006.90 and 768,132.60

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Solution

The fourth proportional to 1,328,004.60, 1,992,006.90 and 768,132.60 is: 1,152,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,004.60 : 1,992,006.90 = 768,132.60 : x
  2. Step 2: Convert to fraction form
    1,328,004.60/1,992,006.90 = 768,132.60/x
  3. Step 3: Cross multiply
    1,328,004.60x = 1,992,006.90 × 768,132.60
  4. Step 4: Simplify right side
    1,328,004.60x = 1,530,125,439,314.94
  5. Step 5: Solve for x
    x = 1,530,125,439,314.94/1,328,004.60
  6. Step 6: Final answer
    x = 1,152,198.90

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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.