Home / 2,809,692-3,877,381.86-1,520,541.78

Finding the Fourth Proportional to 2,809,692, 3,877,381.86 and 1,520,541.78

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Solution

The fourth proportional to 2,809,692, 3,877,381.86 and 1,520,541.78 is: 2,098,351.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809,692 : 3,877,381.86 = 1,520,541.78 : x
  2. Step 2: Convert to fraction form
    2,809,692/3,877,381.86 = 1,520,541.78/x
  3. Step 3: Cross multiply
    2,809,692x = 3,877,381.86 × 1,520,541.78
  4. Step 4: Simplify right side
    2,809,692x = 5,895,721,115,144.11
  5. Step 5: Solve for x
    x = 5,895,721,115,144.11/2,809,692
  6. Step 6: Final answer
    x = 2,098,351.39

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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.