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Finding the Fourth Proportional to 550,659.53, 825,890.76 and 350,385

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Solution

The fourth proportional to 550,659.53, 825,890.76 and 350,385 is: 525,514.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,659.53 : 825,890.76 = 350,385 : x
  2. Step 2: Convert to fraction form
    550,659.53/825,890.76 = 350,385/x
  3. Step 3: Cross multiply
    550,659.53x = 825,890.76 × 350,385
  4. Step 4: Simplify right side
    550,659.53x = 289,379,733,942.60
  5. Step 5: Solve for x
    x = 289,379,733,942.60/550,659.53
  6. Step 6: Final answer
    x = 525,514.81

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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.