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Finding the Fourth Proportional to 449,984.70, 674,199.45 and 380,000.70

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Solution

The fourth proportional to 449,984.70, 674,199.45 and 380,000.70 is: 569,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,984.70 : 674,199.45 = 380,000.70 : x
  2. Step 2: Convert to fraction form
    449,984.70/674,199.45 = 380,000.70/x
  3. Step 3: Cross multiply
    449,984.70x = 674,199.45 × 380,000.70
  4. Step 4: Simplify right side
    449,984.70x = 256,196,262,939.62
  5. Step 5: Solve for x
    x = 256,196,262,939.62/449,984.70
  6. Step 6: Final answer
    x = 569,344.39

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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.