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Finding the Fourth Proportional to 547,289.34, 755,252.13 and 305,576.02

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Solution

The fourth proportional to 547,289.34, 755,252.13 and 305,576.02 is: 421,690.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,289.34 : 755,252.13 = 305,576.02 : x
  2. Step 2: Convert to fraction form
    547,289.34/755,252.13 = 305,576.02/x
  3. Step 3: Cross multiply
    547,289.34x = 755,252.13 × 305,576.02
  4. Step 4: Simplify right side
    547,289.34x = 230,786,939,981.92
  5. Step 5: Solve for x
    x = 230,786,939,981.92/547,289.34
  6. Step 6: Final answer
    x = 421,690.91

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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.