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Finding the Fourth Proportional to 808,816, 1,116,166.08 and 451,120

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Solution

The fourth proportional to 808,816, 1,116,166.08 and 451,120 is: 622,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,816 : 1,116,166.08 = 451,120 : x
  2. Step 2: Convert to fraction form
    808,816/1,116,166.08 = 451,120/x
  3. Step 3: Cross multiply
    808,816x = 1,116,166.08 × 451,120
  4. Step 4: Simplify right side
    808,816x = 503,524,842,009.60
  5. Step 5: Solve for x
    x = 503,524,842,009.60/808,816
  6. Step 6: Final answer
    x = 622,545.60

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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.