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Finding the Fourth Proportional to 554,954.29, 765,838.94 and 300,305.48

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Solution

The fourth proportional to 554,954.29, 765,838.94 and 300,305.48 is: 414,422.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,954.29 : 765,838.94 = 300,305.48 : x
  2. Step 2: Convert to fraction form
    554,954.29/765,838.94 = 300,305.48/x
  3. Step 3: Cross multiply
    554,954.29x = 765,838.94 × 300,305.48
  4. Step 4: Simplify right side
    554,954.29x = 229,985,625,148.67
  5. Step 5: Solve for x
    x = 229,985,625,148.67/554,954.29
  6. Step 6: Final answer
    x = 414,422.65

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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.