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Finding the Fourth Proportional to 603,324.38, 903,608.76 and 288,002.72

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Solution

The fourth proportional to 603,324.38, 903,608.76 and 288,002.72 is: 431,346.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,324.38 : 903,608.76 = 288,002.72 : x
  2. Step 2: Convert to fraction form
    603,324.38/903,608.76 = 288,002.72/x
  3. Step 3: Cross multiply
    603,324.38x = 903,608.76 × 288,002.72
  4. Step 4: Simplify right side
    603,324.38x = 260,241,780,695.83
  5. Step 5: Solve for x
    x = 260,241,780,695.83/603,324.38
  6. Step 6: Final answer
    x = 431,346.37

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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.