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Finding the Fourth Proportional to 550,624.34, 759,861.87 and 321,339.26

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Solution

The fourth proportional to 550,624.34, 759,861.87 and 321,339.26 is: 443,448.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,624.34 : 759,861.87 = 321,339.26 : x
  2. Step 2: Convert to fraction form
    550,624.34/759,861.87 = 321,339.26/x
  3. Step 3: Cross multiply
    550,624.34x = 759,861.87 × 321,339.26
  4. Step 4: Simplify right side
    550,624.34x = 244,173,451,008.02
  5. Step 5: Solve for x
    x = 244,173,451,008.02/550,624.34
  6. Step 6: Final answer
    x = 443,448.34

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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.