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Finding the Fourth Proportional to 554,993.70, 765,888.42 and 300,344.88

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Solution

The fourth proportional to 554,993.70, 765,888.42 and 300,344.88 is: 414,474.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,993.70 : 765,888.42 = 300,344.88 : x
  2. Step 2: Convert to fraction form
    554,993.70/765,888.42 = 300,344.88/x
  3. Step 3: Cross multiply
    554,993.70x = 765,888.42 × 300,344.88
  4. Step 4: Simplify right side
    554,993.70x = 230,030,665,598.29
  5. Step 5: Solve for x
    x = 230,030,665,598.29/554,993.70
  6. Step 6: Final answer
    x = 414,474.37

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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.