Home / 1,405,680.43-1,939,830.78-761,087.29

Finding the Fourth Proportional to 1,405,680.43, 1,939,830.78 and 761,087.29

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Solution

The fourth proportional to 1,405,680.43, 1,939,830.78 and 761,087.29 is: 1,050,296.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,680.43 : 1,939,830.78 = 761,087.29 : x
  2. Step 2: Convert to fraction form
    1,405,680.43/1,939,830.78 = 761,087.29/x
  3. Step 3: Cross multiply
    1,405,680.43x = 1,939,830.78 × 761,087.29
  4. Step 4: Simplify right side
    1,405,680.43x = 1,476,380,551,408.79
  5. Step 5: Solve for x
    x = 1,476,380,551,408.79/1,405,680.43
  6. Step 6: Final answer
    x = 1,050,296.01

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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.