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Finding the Fourth Proportional to 568,745.79, 785,020.46 and 353,763.69

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Solution

The fourth proportional to 568,745.79, 785,020.46 and 353,763.69 is: 488,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,745.79 : 785,020.46 = 353,763.69 : x
  2. Step 2: Convert to fraction form
    568,745.79/785,020.46 = 353,763.69/x
  3. Step 3: Cross multiply
    568,745.79x = 785,020.46 × 353,763.69
  4. Step 4: Simplify right side
    568,745.79x = 277,711,731,932.37
  5. Step 5: Solve for x
    x = 277,711,731,932.37/568,745.79
  6. Step 6: Final answer
    x = 488,287.98

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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.