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Finding the Fourth Proportional to 545,769.39, 818,596.85 and 146,451.09

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Solution

The fourth proportional to 545,769.39, 818,596.85 and 146,451.09 is: 219,661.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,769.39 : 818,596.85 = 146,451.09 : x
  2. Step 2: Convert to fraction form
    545,769.39/818,596.85 = 146,451.09/x
  3. Step 3: Cross multiply
    545,769.39x = 818,596.85 × 146,451.09
  4. Step 4: Simplify right side
    545,769.39x = 119,884,400,220.81
  5. Step 5: Solve for x
    x = 119,884,400,220.81/545,769.39
  6. Step 6: Final answer
    x = 219,661.28

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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.