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Finding the Fourth Proportional to 489,474.84, 675,687.24 and 458,834.16

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Solution

The fourth proportional to 489,474.84, 675,687.24 and 458,834.16 is: 633,389.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,474.84 : 675,687.24 = 458,834.16 : x
  2. Step 2: Convert to fraction form
    489,474.84/675,687.24 = 458,834.16/x
  3. Step 3: Cross multiply
    489,474.84x = 675,687.24 × 458,834.16
  4. Step 4: Simplify right side
    489,474.84x = 310,028,387,188.12
  5. Step 5: Solve for x
    x = 310,028,387,188.12/489,474.84
  6. Step 6: Final answer
    x = 633,389.83

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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.