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Finding the Fourth Proportional to 603,593.55, 905,511.83 and 177,128.55

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Solution

The fourth proportional to 603,593.55, 905,511.83 and 177,128.55 is: 265,728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,593.55 : 905,511.83 = 177,128.55 : x
  2. Step 2: Convert to fraction form
    603,593.55/905,511.83 = 177,128.55/x
  3. Step 3: Cross multiply
    603,593.55x = 905,511.83 × 177,128.55
  4. Step 4: Simplify right side
    603,593.55x = 160,391,996,570.10
  5. Step 5: Solve for x
    x = 160,391,996,570.10/603,593.55
  6. Step 6: Final answer
    x = 265,728.48

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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.