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Finding the Fourth Proportional to 400,827.69, 552,760.47 and 239,656.59

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Solution

The fourth proportional to 400,827.69, 552,760.47 and 239,656.59 is: 330,497.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,827.69 : 552,760.47 = 239,656.59 : x
  2. Step 2: Convert to fraction form
    400,827.69/552,760.47 = 239,656.59/x
  3. Step 3: Cross multiply
    400,827.69x = 552,760.47 × 239,656.59
  4. Step 4: Simplify right side
    400,827.69x = 132,472,689,327.00
  5. Step 5: Solve for x
    x = 132,472,689,327.00/400,827.69
  6. Step 6: Final answer
    x = 330,497.85

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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.