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Finding the Fourth Proportional to 576,004.90, 864,007.36 and 408,043.30

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Solution

The fourth proportional to 576,004.90, 864,007.36 and 408,043.30 is: 612,064.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,004.90 : 864,007.36 = 408,043.30 : x
  2. Step 2: Convert to fraction form
    576,004.90/864,007.36 = 408,043.30/x
  3. Step 3: Cross multiply
    576,004.90x = 864,007.36 × 408,043.30
  4. Step 4: Simplify right side
    576,004.90x = 352,552,414,398.69
  5. Step 5: Solve for x
    x = 352,552,414,398.69/576,004.90
  6. Step 6: Final answer
    x = 612,064.96

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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.