Home / 3,001,128.47-4,502,408.79-979,376.15

Finding the Fourth Proportional to 3,001,128.47, 4,502,408.79 and 979,376.15

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Solution

The fourth proportional to 3,001,128.47, 4,502,408.79 and 979,376.15 is: 1,469,297.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001,128.47 : 4,502,408.79 = 979,376.15 : x
  2. Step 2: Convert to fraction form
    3,001,128.47/4,502,408.79 = 979,376.15/x
  3. Step 3: Cross multiply
    3,001,128.47x = 4,502,408.79 × 979,376.15
  4. Step 4: Simplify right side
    3,001,128.47x = 4,409,551,786,476.36
  5. Step 5: Solve for x
    x = 4,409,551,786,476.36/3,001,128.47
  6. Step 6: Final answer
    x = 1,469,297.91

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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.