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Finding the Fourth Proportional to 553,784.04, 764,222.31 and 299,135.34

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Solution

The fourth proportional to 553,784.04, 764,222.31 and 299,135.34 is: 412,806.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,784.04 : 764,222.31 = 299,135.34 : x
  2. Step 2: Convert to fraction form
    553,784.04/764,222.31 = 299,135.34/x
  3. Step 3: Cross multiply
    553,784.04x = 764,222.31 × 299,135.34
  4. Step 4: Simplify right side
    553,784.04x = 228,605,900,537.44
  5. Step 5: Solve for x
    x = 228,605,900,537.44/553,784.04
  6. Step 6: Final answer
    x = 412,806.95

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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.