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Finding the Fourth Proportional to 599,658.90, 899,960.37 and 279,646.11

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Solution

The fourth proportional to 599,658.90, 899,960.37 and 279,646.11 is: 419,689.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,658.90 : 899,960.37 = 279,646.11 : x
  2. Step 2: Convert to fraction form
    599,658.90/899,960.37 = 279,646.11/x
  3. Step 3: Cross multiply
    599,658.90x = 899,960.37 × 279,646.11
  4. Step 4: Simplify right side
    599,658.90x = 251,670,416,624.66
  5. Step 5: Solve for x
    x = 251,670,416,624.66/599,658.90
  6. Step 6: Final answer
    x = 419,689.29

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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.