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Finding the Fourth Proportional to 603,436, 905,270.56 and 229,429.92

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Solution

The fourth proportional to 603,436, 905,270.56 and 229,429.92 is: 344,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,436 : 905,270.56 = 229,429.92 : x
  2. Step 2: Convert to fraction form
    603,436/905,270.56 = 229,429.92/x
  3. Step 3: Cross multiply
    603,436x = 905,270.56 × 229,429.92
  4. Step 4: Simplify right side
    603,436x = 207,696,152,159.16
  5. Step 5: Solve for x
    x = 207,696,152,159.16/603,436
  6. Step 6: Final answer
    x = 344,189.20

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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.