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Finding the Fourth Proportional to 457,893.40, 685,527.90 and 444,771.40

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Solution

The fourth proportional to 457,893.40, 685,527.90 and 444,771.40 is: 665,882.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,893.40 : 685,527.90 = 444,771.40 : x
  2. Step 2: Convert to fraction form
    457,893.40/685,527.90 = 444,771.40/x
  3. Step 3: Cross multiply
    457,893.40x = 685,527.90 × 444,771.40
  4. Step 4: Simplify right side
    457,893.40x = 304,903,203,822.06
  5. Step 5: Solve for x
    x = 304,903,203,822.06/457,893.40
  6. Step 6: Final answer
    x = 665,882.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.