Home / 979,830.91-1,469,174.31-380,091.26

Finding the Fourth Proportional to 979,830.91, 1,469,174.31 and 380,091.26

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Solution

The fourth proportional to 979,830.91, 1,469,174.31 and 380,091.26 is: 569,914.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,830.91 : 1,469,174.31 = 380,091.26 : x
  2. Step 2: Convert to fraction form
    979,830.91/1,469,174.31 = 380,091.26/x
  3. Step 3: Cross multiply
    979,830.91x = 1,469,174.31 × 380,091.26
  4. Step 4: Simplify right side
    979,830.91x = 558,420,314,647.53
  5. Step 5: Solve for x
    x = 558,420,314,647.53/979,830.91
  6. Step 6: Final answer
    x = 569,914.98

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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.