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Finding the Fourth Proportional to 550,992.20, 760,445.98 and 306,032

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Solution

The fourth proportional to 550,992.20, 760,445.98 and 306,032 is: 422,366.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,992.20 : 760,445.98 = 306,032 : x
  2. Step 2: Convert to fraction form
    550,992.20/760,445.98 = 306,032/x
  3. Step 3: Cross multiply
    550,992.20x = 760,445.98 × 306,032
  4. Step 4: Simplify right side
    550,992.20x = 232,720,804,151.36
  5. Step 5: Solve for x
    x = 232,720,804,151.36/550,992.20
  6. Step 6: Final answer
    x = 422,366.79

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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.