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Finding the Fourth Proportional to 547,573.59, 755,602.29 and 305,822.61

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Solution

The fourth proportional to 547,573.59, 755,602.29 and 305,822.61 is: 422,007.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,573.59 : 755,602.29 = 305,822.61 : x
  2. Step 2: Convert to fraction form
    547,573.59/755,602.29 = 305,822.61/x
  3. Step 3: Cross multiply
    547,573.59x = 755,602.29 × 305,822.61
  4. Step 4: Simplify right side
    547,573.59x = 231,080,264,449.78
  5. Step 5: Solve for x
    x = 231,080,264,449.78/547,573.59
  6. Step 6: Final answer
    x = 422,007.69

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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.