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Finding the Fourth Proportional to 808,916, 1,116,304.08 and 451,220

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Solution

The fourth proportional to 808,916, 1,116,304.08 and 451,220 is: 622,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,916 : 1,116,304.08 = 451,220 : x
  2. Step 2: Convert to fraction form
    808,916/1,116,304.08 = 451,220/x
  3. Step 3: Cross multiply
    808,916x = 1,116,304.08 × 451,220
  4. Step 4: Simplify right side
    808,916x = 503,698,726,977.60
  5. Step 5: Solve for x
    x = 503,698,726,977.60/808,916
  6. Step 6: Final answer
    x = 622,683.60

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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.