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Finding the Fourth Proportional to 547,288.34, 755,250.75 and 305,575.02

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Solution

The fourth proportional to 547,288.34, 755,250.75 and 305,575.02 is: 421,689.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,288.34 : 755,250.75 = 305,575.02 : x
  2. Step 2: Convert to fraction form
    547,288.34/755,250.75 = 305,575.02/x
  3. Step 3: Cross multiply
    547,288.34x = 755,250.75 × 305,575.02
  4. Step 4: Simplify right side
    547,288.34x = 230,785,763,036.27
  5. Step 5: Solve for x
    x = 230,785,763,036.27/547,288.34
  6. Step 6: Final answer
    x = 421,689.53

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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.