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Finding the Fourth Proportional to 490,478.49, 735,904.54 and 170,665.89

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Solution

The fourth proportional to 490,478.49, 735,904.54 and 170,665.89 is: 256,063.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,478.49 : 735,904.54 = 170,665.89 : x
  2. Step 2: Convert to fraction form
    490,478.49/735,904.54 = 170,665.89/x
  3. Step 3: Cross multiply
    490,478.49x = 735,904.54 × 170,665.89
  4. Step 4: Simplify right side
    490,478.49x = 125,593,800,727.83
  5. Step 5: Solve for x
    x = 125,593,800,727.83/490,478.49
  6. Step 6: Final answer
    x = 256,063.83

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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.