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Finding the Fourth Proportional to 538,650.60, 807,003.90 and 257,548.20

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Solution

The fourth proportional to 538,650.60, 807,003.90 and 257,548.20 is: 385,857.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,650.60 : 807,003.90 = 257,548.20 : x
  2. Step 2: Convert to fraction form
    538,650.60/807,003.90 = 257,548.20/x
  3. Step 3: Cross multiply
    538,650.60x = 807,003.90 × 257,548.20
  4. Step 4: Simplify right side
    538,650.60x = 207,842,401,837.98
  5. Step 5: Solve for x
    x = 207,842,401,837.98/538,650.60
  6. Step 6: Final answer
    x = 385,857.55

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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.