Home / 685,808.41-1,029,376.92-331,071.54

Finding the Fourth Proportional to 685,808.41, 1,029,376.92 and 331,071.54

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Solution

The fourth proportional to 685,808.41, 1,029,376.92 and 331,071.54 is: 496,928.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,808.41 : 1,029,376.92 = 331,071.54 : x
  2. Step 2: Convert to fraction form
    685,808.41/1,029,376.92 = 331,071.54/x
  3. Step 3: Cross multiply
    685,808.41x = 1,029,376.92 × 331,071.54
  4. Step 4: Simplify right side
    685,808.41x = 340,797,402,144.86
  5. Step 5: Solve for x
    x = 340,797,402,144.86/685,808.41
  6. Step 6: Final answer
    x = 496,928.00

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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.