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Finding the Fourth Proportional to 577,256.60, 796,638.70 and 322,607.78

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Solution

The fourth proportional to 577,256.60, 796,638.70 and 322,607.78 is: 445,212.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,256.60 : 796,638.70 = 322,607.78 : x
  2. Step 2: Convert to fraction form
    577,256.60/796,638.70 = 322,607.78/x
  3. Step 3: Cross multiply
    577,256.60x = 796,638.70 × 322,607.78
  4. Step 4: Simplify right side
    577,256.60x = 257,001,842,469.09
  5. Step 5: Solve for x
    x = 257,001,842,469.09/577,256.60
  6. Step 6: Final answer
    x = 445,212.48

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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.