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Finding the Fourth Proportional to 547,285.34, 755,246.61 and 305,572.02

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Solution

The fourth proportional to 547,285.34, 755,246.61 and 305,572.02 is: 421,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,285.34 : 755,246.61 = 305,572.02 : x
  2. Step 2: Convert to fraction form
    547,285.34/755,246.61 = 305,572.02/x
  3. Step 3: Cross multiply
    547,285.34x = 755,246.61 × 305,572.02
  4. Step 4: Simplify right side
    547,285.34x = 230,782,232,215.85
  5. Step 5: Solve for x
    x = 230,782,232,215.85/547,285.34
  6. Step 6: Final answer
    x = 421,685.39

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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.