Home / 685,606.06-1,029,072.48-330,869.80

Finding the Fourth Proportional to 685,606.06, 1,029,072.48 and 330,869.80

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Solution

The fourth proportional to 685,606.06, 1,029,072.48 and 330,869.80 is: 496,624.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,606.06 : 1,029,072.48 = 330,869.80 : x
  2. Step 2: Convert to fraction form
    685,606.06/1,029,072.48 = 330,869.80/x
  3. Step 3: Cross multiply
    685,606.06x = 1,029,072.48 × 330,869.80
  4. Step 4: Simplify right side
    685,606.06x = 340,489,005,643.10
  5. Step 5: Solve for x
    x = 340,489,005,643.10/685,606.06
  6. Step 6: Final answer
    x = 496,624.85

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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.