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Finding the Fourth Proportional to 442,045.18, 663,072.39 and 353,859.28

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Solution

The fourth proportional to 442,045.18, 663,072.39 and 353,859.28 is: 530,792.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,045.18 : 663,072.39 = 353,859.28 : x
  2. Step 2: Convert to fraction form
    442,045.18/663,072.39 = 353,859.28/x
  3. Step 3: Cross multiply
    442,045.18x = 663,072.39 × 353,859.28
  4. Step 4: Simplify right side
    442,045.18x = 234,634,318,513.28
  5. Step 5: Solve for x
    x = 234,634,318,513.28/442,045.18
  6. Step 6: Final answer
    x = 530,792.62

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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.