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Finding the Fourth Proportional to 504,034.20, 756,051.30 and 389,872.80

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Solution

The fourth proportional to 504,034.20, 756,051.30 and 389,872.80 is: 584,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,034.20 : 756,051.30 = 389,872.80 : x
  2. Step 2: Convert to fraction form
    504,034.20/756,051.30 = 389,872.80/x
  3. Step 3: Cross multiply
    504,034.20x = 756,051.30 × 389,872.80
  4. Step 4: Simplify right side
    504,034.20x = 294,763,837,274.64
  5. Step 5: Solve for x
    x = 294,763,837,274.64/504,034.20
  6. Step 6: Final answer
    x = 584,809.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.