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Finding the Fourth Proportional to 603,681.08, 905,512.30 and 154,397.97

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Solution

The fourth proportional to 603,681.08, 905,512.30 and 154,397.97 is: 231,594.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,681.08 : 905,512.30 = 154,397.97 : x
  2. Step 2: Convert to fraction form
    603,681.08/905,512.30 = 154,397.97/x
  3. Step 3: Cross multiply
    603,681.08x = 905,512.30 × 154,397.97
  4. Step 4: Simplify right side
    603,681.08x = 139,809,260,544.04
  5. Step 5: Solve for x
    x = 139,809,260,544.04/603,681.08
  6. Step 6: Final answer
    x = 231,594.57

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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.