Home / 1,076,981.56-1,486,487.81-669,391.22

Finding the Fourth Proportional to 1,076,981.56, 1,486,487.81 and 669,391.22

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Solution

The fourth proportional to 1,076,981.56, 1,486,487.81 and 669,391.22 is: 923,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,981.56 : 1,486,487.81 = 669,391.22 : x
  2. Step 2: Convert to fraction form
    1,076,981.56/1,486,487.81 = 669,391.22/x
  3. Step 3: Cross multiply
    1,076,981.56x = 1,486,487.81 × 669,391.22
  4. Step 4: Simplify right side
    1,076,981.56x = 995,041,888,651.03
  5. Step 5: Solve for x
    x = 995,041,888,651.03/1,076,981.56
  6. Step 6: Final answer
    x = 923,917.30

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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.