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Finding the Fourth Proportional to 547,279.34, 755,238.33 and 305,566.02

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Solution

The fourth proportional to 547,279.34, 755,238.33 and 305,566.02 is: 421,677.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,279.34 : 755,238.33 = 305,566.02 : x
  2. Step 2: Convert to fraction form
    547,279.34/755,238.33 = 305,566.02/x
  3. Step 3: Cross multiply
    547,279.34x = 755,238.33 × 305,566.02
  4. Step 4: Simplify right side
    547,279.34x = 230,775,170,649.55
  5. Step 5: Solve for x
    x = 230,775,170,649.55/547,279.34
  6. Step 6: Final answer
    x = 421,677.11

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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.