Home / 449,845.20-674,767.80-117,421.20

Finding the Fourth Proportional to 449,845.20, 674,767.80 and 117,421.20

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Solution

The fourth proportional to 449,845.20, 674,767.80 and 117,421.20 is: 176,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,845.20 : 674,767.80 = 117,421.20 : x
  2. Step 2: Convert to fraction form
    449,845.20/674,767.80 = 117,421.20/x
  3. Step 3: Cross multiply
    449,845.20x = 674,767.80 × 117,421.20
  4. Step 4: Simplify right side
    449,845.20x = 79,232,044,797.36
  5. Step 5: Solve for x
    x = 79,232,044,797.36/449,845.20
  6. Step 6: Final answer
    x = 176,131.80

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1.5x scale

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.