Home / 1,076,990.78-1,486,500.53-669,400.44

Finding the Fourth Proportional to 1,076,990.78, 1,486,500.53 and 669,400.44

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Solution

The fourth proportional to 1,076,990.78, 1,486,500.53 and 669,400.44 is: 923,930.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,990.78 : 1,486,500.53 = 669,400.44 : x
  2. Step 2: Convert to fraction form
    1,076,990.78/1,486,500.53 = 669,400.44/x
  3. Step 3: Cross multiply
    1,076,990.78x = 1,486,500.53 × 669,400.44
  4. Step 4: Simplify right side
    1,076,990.78x = 995,064,105,495.23
  5. Step 5: Solve for x
    x = 995,064,105,495.23/1,076,990.78
  6. Step 6: Final answer
    x = 923,930.02

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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.