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Finding the Fourth Proportional to 554,763.99, 765,575.10 and 300,114.57

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Solution

The fourth proportional to 554,763.99, 765,575.10 and 300,114.57 is: 414,158.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,763.99 : 765,575.10 = 300,114.57 : x
  2. Step 2: Convert to fraction form
    554,763.99/765,575.10 = 300,114.57/x
  3. Step 3: Cross multiply
    554,763.99x = 765,575.10 × 300,114.57
  4. Step 4: Simplify right side
    554,763.99x = 229,760,241,939.21
  5. Step 5: Solve for x
    x = 229,760,241,939.21/554,763.99
  6. Step 6: Final answer
    x = 414,158.54

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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.