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Finding the Fourth Proportional to 330,744.20, 496,116.30 and 328,411.40

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Solution

The fourth proportional to 330,744.20, 496,116.30 and 328,411.40 is: 492,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,744.20 : 496,116.30 = 328,411.40 : x
  2. Step 2: Convert to fraction form
    330,744.20/496,116.30 = 328,411.40/x
  3. Step 3: Cross multiply
    330,744.20x = 496,116.30 × 328,411.40
  4. Step 4: Simplify right side
    330,744.20x = 162,930,248,645.82
  5. Step 5: Solve for x
    x = 162,930,248,645.82/330,744.20
  6. Step 6: Final answer
    x = 492,617.10

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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.