Home / 1,201,018.72-1,801,639.88-442,829.56

Finding the Fourth Proportional to 1,201,018.72, 1,801,639.88 and 442,829.56

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Solution

The fourth proportional to 1,201,018.72, 1,801,639.88 and 442,829.56 is: 664,285.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,018.72 : 1,801,639.88 = 442,829.56 : x
  2. Step 2: Convert to fraction form
    1,201,018.72/1,801,639.88 = 442,829.56/x
  3. Step 3: Cross multiply
    1,201,018.72x = 1,801,639.88 × 442,829.56
  4. Step 4: Simplify right side
    1,201,018.72x = 797,819,395,338.85
  5. Step 5: Solve for x
    x = 797,819,395,338.85/1,201,018.72
  6. Step 6: Final answer
    x = 664,285.56

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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.