Home / 1,379,150.54-2,068,725.80-381,878.54

Finding the Fourth Proportional to 1,379,150.54, 2,068,725.80 and 381,878.54

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Solution

The fourth proportional to 1,379,150.54, 2,068,725.80 and 381,878.54 is: 572,817.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,150.54 : 2,068,725.80 = 381,878.54 : x
  2. Step 2: Convert to fraction form
    1,379,150.54/2,068,725.80 = 381,878.54/x
  3. Step 3: Cross multiply
    1,379,150.54x = 2,068,725.80 × 381,878.54
  4. Step 4: Simplify right side
    1,379,150.54x = 790,001,975,911.31
  5. Step 5: Solve for x
    x = 790,001,975,911.31/1,379,150.54
  6. Step 6: Final answer
    x = 572,817.80

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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.