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Finding the Fourth Proportional to 437,611.91, 603,778.47 and 284,874.89

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Solution

The fourth proportional to 437,611.91, 603,778.47 and 284,874.89 is: 393,045.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,611.91 : 603,778.47 = 284,874.89 : x
  2. Step 2: Convert to fraction form
    437,611.91/603,778.47 = 284,874.89/x
  3. Step 3: Cross multiply
    437,611.91x = 603,778.47 × 284,874.89
  4. Step 4: Simplify right side
    437,611.91x = 172,001,325,225.62
  5. Step 5: Solve for x
    x = 172,001,325,225.62/437,611.91
  6. Step 6: Final answer
    x = 393,045.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.