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Finding the Fourth Proportional to 603,438, 905,273.56 and 229,431.92

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Solution

The fourth proportional to 603,438, 905,273.56 and 229,431.92 is: 344,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,438 : 905,273.56 = 229,431.92 : x
  2. Step 2: Convert to fraction form
    603,438/905,273.56 = 229,431.92/x
  3. Step 3: Cross multiply
    603,438x = 905,273.56 × 229,431.92
  4. Step 4: Simplify right side
    603,438x = 207,698,650,996.04
  5. Step 5: Solve for x
    x = 207,698,650,996.04/603,438
  6. Step 6: Final answer
    x = 344,192.20

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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.