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Finding the Fourth Proportional to 808,828, 1,116,182.64 and 451,132

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Solution

The fourth proportional to 808,828, 1,116,182.64 and 451,132 is: 622,562.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,828 : 1,116,182.64 = 451,132 : x
  2. Step 2: Convert to fraction form
    808,828/1,116,182.64 = 451,132/x
  3. Step 3: Cross multiply
    808,828x = 1,116,182.64 × 451,132
  4. Step 4: Simplify right side
    808,828x = 503,545,706,748.48
  5. Step 5: Solve for x
    x = 503,545,706,748.48/808,828
  6. Step 6: Final answer
    x = 622,562.16

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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.