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Finding the Fourth Proportional to 554,589.45, 765,333.42 and 299,940.63

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Solution

The fourth proportional to 554,589.45, 765,333.42 and 299,940.63 is: 413,918.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,589.45 : 765,333.42 = 299,940.63 : x
  2. Step 2: Convert to fraction form
    554,589.45/765,333.42 = 299,940.63/x
  3. Step 3: Cross multiply
    554,589.45x = 765,333.42 × 299,940.63
  4. Step 4: Simplify right side
    554,589.45x = 229,554,588,154.86
  5. Step 5: Solve for x
    x = 229,554,588,154.86/554,589.45
  6. Step 6: Final answer
    x = 413,918.06

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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.