Home / 1,511,491.30-2,085,703.78-930,622.28

Finding the Fourth Proportional to 1,511,491.30, 2,085,703.78 and 930,622.28

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Solution

The fourth proportional to 1,511,491.30, 2,085,703.78 and 930,622.28 is: 1,284,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,491.30 : 2,085,703.78 = 930,622.28 : x
  2. Step 2: Convert to fraction form
    1,511,491.30/2,085,703.78 = 930,622.28/x
  3. Step 3: Cross multiply
    1,511,491.30x = 2,085,703.78 × 930,622.28
  4. Step 4: Simplify right side
    1,511,491.30x = 1,941,002,407,148.22
  5. Step 5: Solve for x
    x = 1,941,002,407,148.22/1,511,491.30
  6. Step 6: Final answer
    x = 1,284,163.80

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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.