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Finding the Fourth Proportional to 553,771.62, 764,205.30 and 299,123.01

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Solution

The fourth proportional to 553,771.62, 764,205.30 and 299,123.01 is: 412,790.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,771.62 : 764,205.30 = 299,123.01 : x
  2. Step 2: Convert to fraction form
    553,771.62/764,205.30 = 299,123.01/x
  3. Step 3: Cross multiply
    553,771.62x = 764,205.30 × 299,123.01
  4. Step 4: Simplify right side
    553,771.62x = 228,591,389,593.95
  5. Step 5: Solve for x
    x = 228,591,389,593.95/553,771.62
  6. Step 6: Final answer
    x = 412,790.00

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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.