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Finding the Fourth Proportional to 400,404.52, 552,318.10 and 264,438.73

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Solution

The fourth proportional to 400,404.52, 552,318.10 and 264,438.73 is: 364,766.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,404.52 : 552,318.10 = 264,438.73 : x
  2. Step 2: Convert to fraction form
    400,404.52/552,318.10 = 264,438.73/x
  3. Step 3: Cross multiply
    400,404.52x = 552,318.10 × 264,438.73
  4. Step 4: Simplify right side
    400,404.52x = 146,054,296,920.01
  5. Step 5: Solve for x
    x = 146,054,296,920.01/400,404.52
  6. Step 6: Final answer
    x = 364,766.85

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1.5x scale

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.