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Finding the Fourth Proportional to 653,469.30, 979,754.40 and 333,000.90

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Solution

The fourth proportional to 653,469.30, 979,754.40 and 333,000.90 is: 499,272.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,469.30 : 979,754.40 = 333,000.90 : x
  2. Step 2: Convert to fraction form
    653,469.30/979,754.40 = 333,000.90/x
  3. Step 3: Cross multiply
    653,469.30x = 979,754.40 × 333,000.90
  4. Step 4: Simplify right side
    653,469.30x = 326,259,096,978.96
  5. Step 5: Solve for x
    x = 326,259,096,978.96/653,469.30
  6. Step 6: Final answer
    x = 499,272.26

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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.