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Finding the Fourth Proportional to 576,287.48, 795,277.68 and 321,638.60

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Solution

The fourth proportional to 576,287.48, 795,277.68 and 321,638.60 is: 443,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,287.48 : 795,277.68 = 321,638.60 : x
  2. Step 2: Convert to fraction form
    576,287.48/795,277.68 = 321,638.60/x
  3. Step 3: Cross multiply
    576,287.48x = 795,277.68 × 321,638.60
  4. Step 4: Simplify right side
    576,287.48x = 255,791,999,606.45
  5. Step 5: Solve for x
    x = 255,791,999,606.45/576,287.48
  6. Step 6: Final answer
    x = 443,861.80

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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.