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Finding the Fourth Proportional to 349,972.40, 524,375.40 and 328,977.20

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Solution

The fourth proportional to 349,972.40, 524,375.40 and 328,977.20 is: 492,917.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,972.40 : 524,375.40 = 328,977.20 : x
  2. Step 2: Convert to fraction form
    349,972.40/524,375.40 = 328,977.20/x
  3. Step 3: Cross multiply
    349,972.40x = 524,375.40 × 328,977.20
  4. Step 4: Simplify right side
    349,972.40x = 172,507,550,840.88
  5. Step 5: Solve for x
    x = 172,507,550,840.88/349,972.40
  6. Step 6: Final answer
    x = 492,917.59

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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.