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Finding the Fourth Proportional to 554,993.06, 765,892.87 and 300,344.31

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Solution

The fourth proportional to 554,993.06, 765,892.87 and 300,344.31 is: 414,476.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,993.06 : 765,892.87 = 300,344.31 : x
  2. Step 2: Convert to fraction form
    554,993.06/765,892.87 = 300,344.31/x
  3. Step 3: Cross multiply
    554,993.06x = 765,892.87 × 300,344.31
  4. Step 4: Simplify right side
    554,993.06x = 230,031,564,823.21
  5. Step 5: Solve for x
    x = 230,031,564,823.21/554,993.06
  6. Step 6: Final answer
    x = 414,476.47

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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.