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Finding the Fourth Proportional to 515,558.22, 773,087.31 and 302,395.79

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Solution

The fourth proportional to 515,558.22, 773,087.31 and 302,395.79 is: 453,447.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,558.22 : 773,087.31 = 302,395.79 : x
  2. Step 2: Convert to fraction form
    515,558.22/773,087.31 = 302,395.79/x
  3. Step 3: Cross multiply
    515,558.22x = 773,087.31 × 302,395.79
  4. Step 4: Simplify right side
    515,558.22x = 233,778,347,846.43
  5. Step 5: Solve for x
    x = 233,778,347,846.43/515,558.22
  6. Step 6: Final answer
    x = 453,447.04

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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.