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Finding the Fourth Proportional to 399,676.68, 598,440.72 and 304,453.25

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Solution

The fourth proportional to 399,676.68, 598,440.72 and 304,453.25 is: 455,861.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,676.68 : 598,440.72 = 304,453.25 : x
  2. Step 2: Convert to fraction form
    399,676.68/598,440.72 = 304,453.25/x
  3. Step 3: Cross multiply
    399,676.68x = 598,440.72 × 304,453.25
  4. Step 4: Simplify right side
    399,676.68x = 182,197,217,621.87
  5. Step 5: Solve for x
    x = 182,197,217,621.87/399,676.68
  6. Step 6: Final answer
    x = 455,861.52

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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.