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Finding the Fourth Proportional to 336,775.65, 504,821.64 and 287,617.35

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Solution

The fourth proportional to 336,775.65, 504,821.64 and 287,617.35 is: 431,134.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,775.65 : 504,821.64 = 287,617.35 : x
  2. Step 2: Convert to fraction form
    336,775.65/504,821.64 = 287,617.35/x
  3. Step 3: Cross multiply
    336,775.65x = 504,821.64 × 287,617.35
  4. Step 4: Simplify right side
    336,775.65x = 145,195,462,319.45
  5. Step 5: Solve for x
    x = 145,195,462,319.45/336,775.65
  6. Step 6: Final answer
    x = 431,134.09

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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.