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Finding the Fourth Proportional to 547,292.32, 755,256.28 and 305,579.04

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Solution

The fourth proportional to 547,292.32, 755,256.28 and 305,579.04 is: 421,695.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,292.32 : 755,256.28 = 305,579.04 : x
  2. Step 2: Convert to fraction form
    547,292.32/755,256.28 = 305,579.04/x
  3. Step 3: Cross multiply
    547,292.32x = 755,256.28 × 305,579.04
  4. Step 4: Simplify right side
    547,292.32x = 230,790,488,996.37
  5. Step 5: Solve for x
    x = 230,790,488,996.37/547,292.32
  6. Step 6: Final answer
    x = 421,695.10

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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.