Home / 464,628.30-641,412.35-311,610.52

Finding the Fourth Proportional to 464,628.30, 641,412.35 and 311,610.52

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Solution

The fourth proportional to 464,628.30, 641,412.35 and 311,610.52 is: 430,173.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,628.30 : 641,412.35 = 311,610.52 : x
  2. Step 2: Convert to fraction form
    464,628.30/641,412.35 = 311,610.52/x
  3. Step 3: Cross multiply
    464,628.30x = 641,412.35 × 311,610.52
  4. Step 4: Simplify right side
    464,628.30x = 199,870,835,917.92
  5. Step 5: Solve for x
    x = 199,870,835,917.92/464,628.30
  6. Step 6: Final answer
    x = 430,173.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.