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Finding the Fourth Proportional to 553,808.37, 764,256.24 and 299,159.56

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Solution

The fourth proportional to 553,808.37, 764,256.24 and 299,159.56 is: 412,840.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,808.37 : 764,256.24 = 299,159.56 : x
  2. Step 2: Convert to fraction form
    553,808.37/764,256.24 = 299,159.56/x
  3. Step 3: Cross multiply
    553,808.37x = 764,256.24 × 299,159.56
  4. Step 4: Simplify right side
    553,808.37x = 228,634,558,989.86
  5. Step 5: Solve for x
    x = 228,634,558,989.86/553,808.37
  6. Step 6: Final answer
    x = 412,840.56

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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.