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Finding the Fourth Proportional to 489,227.20, 733,840.80 and 470,564.80

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Solution

The fourth proportional to 489,227.20, 733,840.80 and 470,564.80 is: 705,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,227.20 : 733,840.80 = 470,564.80 : x
  2. Step 2: Convert to fraction form
    489,227.20/733,840.80 = 470,564.80/x
  3. Step 3: Cross multiply
    489,227.20x = 733,840.80 × 470,564.80
  4. Step 4: Simplify right side
    489,227.20x = 345,319,649,283.84
  5. Step 5: Solve for x
    x = 345,319,649,283.84/489,227.20
  6. Step 6: Final answer
    x = 705,847.20

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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.