Home / 1,128,947.44-1,557,925.22-638,907.88

Finding the Fourth Proportional to 1,128,947.44, 1,557,925.22 and 638,907.88

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Solution

The fourth proportional to 1,128,947.44, 1,557,925.22 and 638,907.88 is: 881,680.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,947.44 : 1,557,925.22 = 638,907.88 : x
  2. Step 2: Convert to fraction form
    1,128,947.44/1,557,925.22 = 638,907.88/x
  3. Step 3: Cross multiply
    1,128,947.44x = 1,557,925.22 × 638,907.88
  4. Step 4: Simplify right side
    1,128,947.44x = 995,370,699,508.73
  5. Step 5: Solve for x
    x = 995,370,699,508.73/1,128,947.44
  6. Step 6: Final answer
    x = 881,680.28

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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.