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Finding the Fourth Proportional to 489,218.70, 733,828.05 and 489,218.70

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Solution

The fourth proportional to 489,218.70, 733,828.05 and 489,218.70 is: 733,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,218.70 : 733,828.05 = 489,218.70 : x
  2. Step 2: Convert to fraction form
    489,218.70/733,828.05 = 489,218.70/x
  3. Step 3: Cross multiply
    489,218.70x = 733,828.05 × 489,218.70
  4. Step 4: Simplify right side
    489,218.70x = 359,002,404,644.54
  5. Step 5: Solve for x
    x = 359,002,404,644.54/489,218.70
  6. Step 6: Final answer
    x = 733,828.05

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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.