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Finding the Fourth Proportional to 704,488.88, 972,286.36 and 394,509.52

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Solution

The fourth proportional to 704,488.88, 972,286.36 and 394,509.52 is: 544,474.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,488.88 : 972,286.36 = 394,509.52 : x
  2. Step 2: Convert to fraction form
    704,488.88/972,286.36 = 394,509.52/x
  3. Step 3: Cross multiply
    704,488.88x = 972,286.36 × 394,509.52
  4. Step 4: Simplify right side
    704,488.88x = 383,576,223,213.60
  5. Step 5: Solve for x
    x = 383,576,223,213.60/704,488.88
  6. Step 6: Final answer
    x = 544,474.49

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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.