Home / 1,985,933.76-2,740,506.72-1,080,519.36

Finding the Fourth Proportional to 1,985,933.76, 2,740,506.72 and 1,080,519.36

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Solution

The fourth proportional to 1,985,933.76, 2,740,506.72 and 1,080,519.36 is: 1,491,072.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,933.76 : 2,740,506.72 = 1,080,519.36 : x
  2. Step 2: Convert to fraction form
    1,985,933.76/2,740,506.72 = 1,080,519.36/x
  3. Step 3: Cross multiply
    1,985,933.76x = 2,740,506.72 × 1,080,519.36
  4. Step 4: Simplify right side
    1,985,933.76x = 2,961,170,567,170.10
  5. Step 5: Solve for x
    x = 2,961,170,567,170.10/1,985,933.76
  6. Step 6: Final answer
    x = 1,491,072.17

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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.