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Finding the Fourth Proportional to 408,965.56, 564,290.04 and 247,726.96

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Solution

The fourth proportional to 408,965.56, 564,290.04 and 247,726.96 is: 341,813.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,965.56 : 564,290.04 = 247,726.96 : x
  2. Step 2: Convert to fraction form
    408,965.56/564,290.04 = 247,726.96/x
  3. Step 3: Cross multiply
    408,965.56x = 564,290.04 × 247,726.96
  4. Step 4: Simplify right side
    408,965.56x = 139,789,855,685.73
  5. Step 5: Solve for x
    x = 139,789,855,685.73/408,965.56
  6. Step 6: Final answer
    x = 341,813.27

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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.