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Finding the Fourth Proportional to 442,043.54, 663,069.96 and 353,857.64

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Solution

The fourth proportional to 442,043.54, 663,069.96 and 353,857.64 is: 530,790.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,043.54 : 663,069.96 = 353,857.64 : x
  2. Step 2: Convert to fraction form
    442,043.54/663,069.96 = 353,857.64/x
  3. Step 3: Cross multiply
    442,043.54x = 663,069.96 × 353,857.64
  4. Step 4: Simplify right side
    442,043.54x = 234,632,371,200.49
  5. Step 5: Solve for x
    x = 234,632,371,200.49/442,043.54
  6. Step 6: Final answer
    x = 530,790.18

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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.