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Finding the Fourth Proportional to 550,335.60, 759,462.89 and 320,902.97

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Solution

The fourth proportional to 550,335.60, 759,462.89 and 320,902.97 is: 442,845.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,335.60 : 759,462.89 = 320,902.97 : x
  2. Step 2: Convert to fraction form
    550,335.60/759,462.89 = 320,902.97/x
  3. Step 3: Cross multiply
    550,335.60x = 759,462.89 × 320,902.97
  4. Step 4: Simplify right side
    550,335.60x = 243,713,891,603.95
  5. Step 5: Solve for x
    x = 243,713,891,603.95/550,335.60
  6. Step 6: Final answer
    x = 442,845.95

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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.