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Finding the Fourth Proportional to 449,710.83, 620,624.97 and 258,753.33

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Solution

The fourth proportional to 449,710.83, 620,624.97 and 258,753.33 is: 357,093.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,710.83 : 620,624.97 = 258,753.33 : x
  2. Step 2: Convert to fraction form
    449,710.83/620,624.97 = 258,753.33/x
  3. Step 3: Cross multiply
    449,710.83x = 620,624.97 × 258,753.33
  4. Step 4: Simplify right side
    449,710.83x = 160,588,777,668.65
  5. Step 5: Solve for x
    x = 160,588,777,668.65/449,710.83
  6. Step 6: Final answer
    x = 357,093.42

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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.