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Finding the Fourth Proportional to 553,777.88, 764,213.77 and 299,129.06

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Solution

The fourth proportional to 553,777.88, 764,213.77 and 299,129.06 is: 412,798.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,777.88 : 764,213.77 = 299,129.06 : x
  2. Step 2: Convert to fraction form
    553,777.88/764,213.77 = 299,129.06/x
  3. Step 3: Cross multiply
    553,777.88x = 764,213.77 × 299,129.06
  4. Step 4: Simplify right side
    553,777.88x = 228,598,548,943.60
  5. Step 5: Solve for x
    x = 228,598,548,943.60/553,777.88
  6. Step 6: Final answer
    x = 412,798.27

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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.