Home / 2,854,663.97-4,282,786.31-1,318,128.30

Finding the Fourth Proportional to 2,854,663.97, 4,282,786.31 and 1,318,128.30

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Solution

The fourth proportional to 2,854,663.97, 4,282,786.31 and 1,318,128.30 is: 1,977,557.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854,663.97 : 4,282,786.31 = 1,318,128.30 : x
  2. Step 2: Convert to fraction form
    2,854,663.97/4,282,786.31 = 1,318,128.30/x
  3. Step 3: Cross multiply
    2,854,663.97x = 4,282,786.31 × 1,318,128.30
  4. Step 4: Simplify right side
    2,854,663.97x = 5,645,261,831,472.93
  5. Step 5: Solve for x
    x = 5,645,261,831,472.93/2,854,663.97
  6. Step 6: Final answer
    x = 1,977,557.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.