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Finding the Fourth Proportional to 603,395.88, 905,210.52 and 229,389.72

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Solution

The fourth proportional to 603,395.88, 905,210.52 and 229,389.72 is: 344,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,395.88 : 905,210.52 = 229,389.72 : x
  2. Step 2: Convert to fraction form
    603,395.88/905,210.52 = 229,389.72/x
  3. Step 3: Cross multiply
    603,395.88x = 905,210.52 × 229,389.72
  4. Step 4: Simplify right side
    603,395.88x = 207,645,987,723.85
  5. Step 5: Solve for x
    x = 207,645,987,723.85/603,395.88
  6. Step 6: Final answer
    x = 344,128.95

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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.