Home / 979,913.88-1,469,298.54-380,174.22

Finding the Fourth Proportional to 979,913.88, 1,469,298.54 and 380,174.22

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Solution

The fourth proportional to 979,913.88, 1,469,298.54 and 380,174.22 is: 570,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,913.88 : 1,469,298.54 = 380,174.22 : x
  2. Step 2: Convert to fraction form
    979,913.88/1,469,298.54 = 380,174.22/x
  3. Step 3: Cross multiply
    979,913.88x = 1,469,298.54 × 380,174.22
  4. Step 4: Simplify right side
    979,913.88x = 558,589,426,391.64
  5. Step 5: Solve for x
    x = 558,589,426,391.64/979,913.88
  6. Step 6: Final answer
    x = 570,039.30

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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.