Home / 1,820,970.44-2,512,939.68-1,005,174.60

Finding the Fourth Proportional to 1,820,970.44, 2,512,939.68 and 1,005,174.60

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Solution

The fourth proportional to 1,820,970.44, 2,512,939.68 and 1,005,174.60 is: 1,387,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,970.44 : 2,512,939.68 = 1,005,174.60 : x
  2. Step 2: Convert to fraction form
    1,820,970.44/2,512,939.68 = 1,005,174.60/x
  3. Step 3: Cross multiply
    1,820,970.44x = 2,512,939.68 × 1,005,174.60
  4. Step 4: Simplify right side
    1,820,970.44x = 2,525,943,137,668.13
  5. Step 5: Solve for x
    x = 2,525,943,137,668.13/1,820,970.44
  6. Step 6: Final answer
    x = 1,387,141.21

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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.