Home / 1,821,780.36-2,514,040.53-1,005,966.45

Finding the Fourth Proportional to 1,821,780.36, 2,514,040.53 and 1,005,966.45

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Solution

The fourth proportional to 1,821,780.36, 2,514,040.53 and 1,005,966.45 is: 1,388,224.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,780.36 : 2,514,040.53 = 1,005,966.45 : x
  2. Step 2: Convert to fraction form
    1,821,780.36/2,514,040.53 = 1,005,966.45/x
  3. Step 3: Cross multiply
    1,821,780.36x = 2,514,040.53 × 1,005,966.45
  4. Step 4: Simplify right side
    1,821,780.36x = 2,529,040,427,120.22
  5. Step 5: Solve for x
    x = 2,529,040,427,120.22/1,821,780.36
  6. Step 6: Final answer
    x = 1,388,224.66

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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.