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Finding the Fourth Proportional to 472,480.64, 652,181.28 and 281,553.92

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Solution

The fourth proportional to 472,480.64, 652,181.28 and 281,553.92 is: 388,638.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,480.64 : 652,181.28 = 281,553.92 : x
  2. Step 2: Convert to fraction form
    472,480.64/652,181.28 = 281,553.92/x
  3. Step 3: Cross multiply
    472,480.64x = 652,181.28 × 281,553.92
  4. Step 4: Simplify right side
    472,480.64x = 183,624,195,934.62
  5. Step 5: Solve for x
    x = 183,624,195,934.62/472,480.64
  6. Step 6: Final answer
    x = 388,638.56

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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.