Home / 1,278,214.56-1,763,942.40-705,255.12

Finding the Fourth Proportional to 1,278,214.56, 1,763,942.40 and 705,255.12

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Solution

The fourth proportional to 1,278,214.56, 1,763,942.40 and 705,255.12 is: 973,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,214.56 : 1,763,942.40 = 705,255.12 : x
  2. Step 2: Convert to fraction form
    1,278,214.56/1,763,942.40 = 705,255.12/x
  3. Step 3: Cross multiply
    1,278,214.56x = 1,763,942.40 × 705,255.12
  4. Step 4: Simplify right side
    1,278,214.56x = 1,244,029,408,985.09
  5. Step 5: Solve for x
    x = 1,244,029,408,985.09/1,278,214.56
  6. Step 6: Final answer
    x = 973,255.55

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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.