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Finding the Fourth Proportional to 484,558.40, 727,269.60 and 284,628.80

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Solution

The fourth proportional to 484,558.40, 727,269.60 and 284,628.80 is: 427,196.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,558.40 : 727,269.60 = 284,628.80 : x
  2. Step 2: Convert to fraction form
    484,558.40/727,269.60 = 284,628.80/x
  3. Step 3: Cross multiply
    484,558.40x = 727,269.60 × 284,628.80
  4. Step 4: Simplify right side
    484,558.40x = 207,001,873,524.48
  5. Step 5: Solve for x
    x = 207,001,873,524.48/484,558.40
  6. Step 6: Final answer
    x = 427,196.96

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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.