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Finding the Fourth Proportional to 672,576, 928,174.32 and 370,789.44

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Solution

The fourth proportional to 672,576, 928,174.32 and 370,789.44 is: 511,700.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,576 : 928,174.32 = 370,789.44 : x
  2. Step 2: Convert to fraction form
    672,576/928,174.32 = 370,789.44/x
  3. Step 3: Cross multiply
    672,576x = 928,174.32 × 370,789.44
  4. Step 4: Simplify right side
    672,576x = 344,157,236,335.18
  5. Step 5: Solve for x
    x = 344,157,236,335.18/672,576
  6. Step 6: Final answer
    x = 511,700.14

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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.