Home / 1,216,007.20-1,824,010.80-768,109.60

Finding the Fourth Proportional to 1,216,007.20, 1,824,010.80 and 768,109.60

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Solution

The fourth proportional to 1,216,007.20, 1,824,010.80 and 768,109.60 is: 1,152,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,007.20 : 1,824,010.80 = 768,109.60 : x
  2. Step 2: Convert to fraction form
    1,216,007.20/1,824,010.80 = 768,109.60/x
  3. Step 3: Cross multiply
    1,216,007.20x = 1,824,010.80 × 768,109.60
  4. Step 4: Simplify right side
    1,216,007.20x = 1,401,040,205,983.68
  5. Step 5: Solve for x
    x = 1,401,040,205,983.68/1,216,007.20
  6. Step 6: Final answer
    x = 1,152,164.40

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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.