Home / 648,529.20-971,481.60-449,074.80

Finding the Fourth Proportional to 648,529.20, 971,481.60 and 449,074.80

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Solution

The fourth proportional to 648,529.20, 971,481.60 and 449,074.80 is: 672,703.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,529.20 : 971,481.60 = 449,074.80 : x
  2. Step 2: Convert to fraction form
    648,529.20/971,481.60 = 449,074.80/x
  3. Step 3: Cross multiply
    648,529.20x = 971,481.60 × 449,074.80
  4. Step 4: Simplify right side
    648,529.20x = 436,267,905,223.68
  5. Step 5: Solve for x
    x = 436,267,905,223.68/648,529.20
  6. Step 6: Final answer
    x = 672,703.57

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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.