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Finding the Fourth Proportional to 519,559.98, 717,112.31 and 304,769.24

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Solution

The fourth proportional to 519,559.98, 717,112.31 and 304,769.24 is: 420,651.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,559.98 : 717,112.31 = 304,769.24 : x
  2. Step 2: Convert to fraction form
    519,559.98/717,112.31 = 304,769.24/x
  3. Step 3: Cross multiply
    519,559.98x = 717,112.31 × 304,769.24
  4. Step 4: Simplify right side
    519,559.98x = 218,553,768,603.94
  5. Step 5: Solve for x
    x = 218,553,768,603.94/519,559.98
  6. Step 6: Final answer
    x = 420,651.66

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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.