Home / 1,138,010.70-1,570,408.29-621,782.49

Finding the Fourth Proportional to 1,138,010.70, 1,570,408.29 and 621,782.49

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Solution

The fourth proportional to 1,138,010.70, 1,570,408.29 and 621,782.49 is: 858,034.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,010.70 : 1,570,408.29 = 621,782.49 : x
  2. Step 2: Convert to fraction form
    1,138,010.70/1,570,408.29 = 621,782.49/x
  3. Step 3: Cross multiply
    1,138,010.70x = 1,570,408.29 × 621,782.49
  4. Step 4: Simplify right side
    1,138,010.70x = 976,452,376,872.84
  5. Step 5: Solve for x
    x = 976,452,376,872.84/1,138,010.70
  6. Step 6: Final answer
    x = 858,034.44

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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.