Home / 1,405,680.19-1,939,839.58-761,100.82

Finding the Fourth Proportional to 1,405,680.19, 1,939,839.58 and 761,100.82

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Solution

The fourth proportional to 1,405,680.19, 1,939,839.58 and 761,100.82 is: 1,050,319.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,680.19 : 1,939,839.58 = 761,100.82 : x
  2. Step 2: Convert to fraction form
    1,405,680.19/1,939,839.58 = 761,100.82/x
  3. Step 3: Cross multiply
    1,405,680.19x = 1,939,839.58 × 761,100.82
  4. Step 4: Simplify right side
    1,405,680.19x = 1,476,413,493,103.70
  5. Step 5: Solve for x
    x = 1,476,413,493,103.70/1,405,680.19
  6. Step 6: Final answer
    x = 1,050,319.63

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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.