Home / 1,076,991.28-1,486,501.22-669,400.94

Finding the Fourth Proportional to 1,076,991.28, 1,486,501.22 and 669,400.94

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Solution

The fourth proportional to 1,076,991.28, 1,486,501.22 and 669,400.94 is: 923,930.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,991.28 : 1,486,501.22 = 669,400.94 : x
  2. Step 2: Convert to fraction form
    1,076,991.28/1,486,501.22 = 669,400.94/x
  3. Step 3: Cross multiply
    1,076,991.28x = 1,486,501.22 × 669,400.94
  4. Step 4: Simplify right side
    1,076,991.28x = 995,065,313,979.15
  5. Step 5: Solve for x
    x = 995,065,313,979.15/1,076,991.28
  6. Step 6: Final answer
    x = 923,930.71

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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.