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Finding the Fourth Proportional to 469,996.88, 648,606.68 and 279,010.96

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Solution

The fourth proportional to 469,996.88, 648,606.68 and 279,010.96 is: 385,041.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,996.88 : 648,606.68 = 279,010.96 : x
  2. Step 2: Convert to fraction form
    469,996.88/648,606.68 = 279,010.96/x
  3. Step 3: Cross multiply
    469,996.88x = 648,606.68 × 279,010.96
  4. Step 4: Simplify right side
    469,996.88x = 180,968,372,449.21
  5. Step 5: Solve for x
    x = 180,968,372,449.21/469,996.88
  6. Step 6: Final answer
    x = 385,041.65

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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.