Home / 1,511,374.39-2,267,360.57-431,896.70

Finding the Fourth Proportional to 1,511,374.39, 2,267,360.57 and 431,896.70

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Solution

The fourth proportional to 1,511,374.39, 2,267,360.57 and 431,896.70 is: 647,930.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,374.39 : 2,267,360.57 = 431,896.70 : x
  2. Step 2: Convert to fraction form
    1,511,374.39/2,267,360.57 = 431,896.70/x
  3. Step 3: Cross multiply
    1,511,374.39x = 2,267,360.57 × 431,896.70
  4. Step 4: Simplify right side
    1,511,374.39x = 979,265,554,641.26
  5. Step 5: Solve for x
    x = 979,265,554,641.26/1,511,374.39
  6. Step 6: Final answer
    x = 647,930.49

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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.