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Finding the Fourth Proportional to 554,486.31, 765,192.56 and 299,837.57

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Solution

The fourth proportional to 554,486.31, 765,192.56 and 299,837.57 is: 413,776.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,486.31 : 765,192.56 = 299,837.57 : x
  2. Step 2: Convert to fraction form
    554,486.31/765,192.56 = 299,837.57/x
  3. Step 3: Cross multiply
    554,486.31x = 765,192.56 × 299,837.57
  4. Step 4: Simplify right side
    554,486.31x = 229,433,472,447.33
  5. Step 5: Solve for x
    x = 229,433,472,447.33/554,486.31
  6. Step 6: Final answer
    x = 413,776.62

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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.