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Finding the Fourth Proportional to 437,592.90, 603,990.56 and 285,011.32

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Solution

The fourth proportional to 437,592.90, 603,990.56 and 285,011.32 is: 393,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,592.90 : 603,990.56 = 285,011.32 : x
  2. Step 2: Convert to fraction form
    437,592.90/603,990.56 = 285,011.32/x
  3. Step 3: Cross multiply
    437,592.90x = 603,990.56 × 285,011.32
  4. Step 4: Simplify right side
    437,592.90x = 172,144,146,773.14
  5. Step 5: Solve for x
    x = 172,144,146,773.14/437,592.90
  6. Step 6: Final answer
    x = 393,388.80

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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.