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Finding the Fourth Proportional to 439,717.70, 659,576.55 and 298,000.10

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Solution

The fourth proportional to 439,717.70, 659,576.55 and 298,000.10 is: 447,000.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,717.70 : 659,576.55 = 298,000.10 : x
  2. Step 2: Convert to fraction form
    439,717.70/659,576.55 = 298,000.10/x
  3. Step 3: Cross multiply
    439,717.70x = 659,576.55 × 298,000.10
  4. Step 4: Simplify right side
    439,717.70x = 196,553,877,857.66
  5. Step 5: Solve for x
    x = 196,553,877,857.66/439,717.70
  6. Step 6: Final answer
    x = 447,000.15

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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.