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Finding the Fourth Proportional to 547,551.96, 755,613.60 and 305,838.04

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Solution

The fourth proportional to 547,551.96, 755,613.60 and 305,838.04 is: 422,051.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,551.96 : 755,613.60 = 305,838.04 : x
  2. Step 2: Convert to fraction form
    547,551.96/755,613.60 = 305,838.04/x
  3. Step 3: Cross multiply
    547,551.96x = 755,613.60 × 305,838.04
  4. Step 4: Simplify right side
    547,551.96x = 231,095,382,421.34
  5. Step 5: Solve for x
    x = 231,095,382,421.34/547,551.96
  6. Step 6: Final answer
    x = 422,051.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.