Home / 1,140,131.20-1,709,793.60-392,003.20

Finding the Fourth Proportional to 1,140,131.20, 1,709,793.60 and 392,003.20

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Solution

The fourth proportional to 1,140,131.20, 1,709,793.60 and 392,003.20 is: 587,866.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,131.20 : 1,709,793.60 = 392,003.20 : x
  2. Step 2: Convert to fraction form
    1,140,131.20/1,709,793.60 = 392,003.20/x
  3. Step 3: Cross multiply
    1,140,131.20x = 1,709,793.60 × 392,003.20
  4. Step 4: Simplify right side
    1,140,131.20x = 670,244,562,539.52
  5. Step 5: Solve for x
    x = 670,244,562,539.52/1,140,131.20
  6. Step 6: Final answer
    x = 587,866.17

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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.