Home / 648,571.20-971,544.60-449,116.80

Finding the Fourth Proportional to 648,571.20, 971,544.60 and 449,116.80

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Solution

The fourth proportional to 648,571.20, 971,544.60 and 449,116.80 is: 672,766.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,571.20 : 971,544.60 = 449,116.80 : x
  2. Step 2: Convert to fraction form
    648,571.20/971,544.60 = 449,116.80/x
  3. Step 3: Cross multiply
    648,571.20x = 971,544.60 × 449,116.80
  4. Step 4: Simplify right side
    648,571.20x = 436,337,001,809.28
  5. Step 5: Solve for x
    x = 436,337,001,809.28/648,571.20
  6. Step 6: Final answer
    x = 672,766.54

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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.