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Finding the Fourth Proportional to 488,309.88, 732,736.98 and 263,665.56

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Solution

The fourth proportional to 488,309.88, 732,736.98 and 263,665.56 is: 395,645.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,309.88 : 732,736.98 = 263,665.56 : x
  2. Step 2: Convert to fraction form
    488,309.88/732,736.98 = 263,665.56/x
  3. Step 3: Cross multiply
    488,309.88x = 732,736.98 × 263,665.56
  4. Step 4: Simplify right side
    488,309.88x = 193,197,506,164.41
  5. Step 5: Solve for x
    x = 193,197,506,164.41/488,309.88
  6. Step 6: Final answer
    x = 395,645.29

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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.