Home / 1,284,786.09-1,925,076.65-777,810.47

Finding the Fourth Proportional to 1,284,786.09, 1,925,076.65 and 777,810.47

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Solution

The fourth proportional to 1,284,786.09, 1,925,076.65 and 777,810.47 is: 1,165,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,786.09 : 1,925,076.65 = 777,810.47 : x
  2. Step 2: Convert to fraction form
    1,284,786.09/1,925,076.65 = 777,810.47/x
  3. Step 3: Cross multiply
    1,284,786.09x = 1,925,076.65 × 777,810.47
  4. Step 4: Simplify right side
    1,284,786.09x = 1,497,344,760,408.09
  5. Step 5: Solve for x
    x = 1,497,344,760,408.09/1,284,786.09
  6. Step 6: Final answer
    x = 1,165,442.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.