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Finding the Fourth Proportional to 489,964.80, 733,910.40 and 489,964.80

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Solution

The fourth proportional to 489,964.80, 733,910.40 and 489,964.80 is: 733,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,964.80 : 733,910.40 = 489,964.80 : x
  2. Step 2: Convert to fraction form
    489,964.80/733,910.40 = 489,964.80/x
  3. Step 3: Cross multiply
    489,964.80x = 733,910.40 × 489,964.80
  4. Step 4: Simplify right side
    489,964.80x = 359,590,262,353.92
  5. Step 5: Solve for x
    x = 359,590,262,353.92/489,964.80
  6. Step 6: Final answer
    x = 733,910.40

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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.