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Finding the Fourth Proportional to 518,751.67, 715,932.34 and 304,072.10

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Solution

The fourth proportional to 518,751.67, 715,932.34 and 304,072.10 is: 419,651.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,751.67 : 715,932.34 = 304,072.10 : x
  2. Step 2: Convert to fraction form
    518,751.67/715,932.34 = 304,072.10/x
  3. Step 3: Cross multiply
    518,751.67x = 715,932.34 × 304,072.10
  4. Step 4: Simplify right side
    518,751.67x = 217,695,048,561.35
  5. Step 5: Solve for x
    x = 217,695,048,561.35/518,751.67
  6. Step 6: Final answer
    x = 419,651.76

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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.