Home / 979,213.38-1,467,638.88-505,640.58

Finding the Fourth Proportional to 979,213.38, 1,467,638.88 and 505,640.58

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Solution

The fourth proportional to 979,213.38, 1,467,638.88 and 505,640.58 is: 757,850.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,213.38 : 1,467,638.88 = 505,640.58 : x
  2. Step 2: Convert to fraction form
    979,213.38/1,467,638.88 = 505,640.58/x
  3. Step 3: Cross multiply
    979,213.38x = 1,467,638.88 × 505,640.58
  4. Step 4: Simplify right side
    979,213.38x = 742,097,774,513.75
  5. Step 5: Solve for x
    x = 742,097,774,513.75/979,213.38
  6. Step 6: Final answer
    x = 757,850.93

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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.