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Finding the Fourth Proportional to 479,363.20, 661,524.80 and 264,511.28

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Solution

The fourth proportional to 479,363.20, 661,524.80 and 264,511.28 is: 365,027.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,363.20 : 661,524.80 = 264,511.28 : x
  2. Step 2: Convert to fraction form
    479,363.20/661,524.80 = 264,511.28/x
  3. Step 3: Cross multiply
    479,363.20x = 661,524.80 × 264,511.28
  4. Step 4: Simplify right side
    479,363.20x = 174,980,771,599.74
  5. Step 5: Solve for x
    x = 174,980,771,599.74/479,363.20
  6. Step 6: Final answer
    x = 365,027.54

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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.