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Finding the Fourth Proportional to 547,702.18, 755,828.94 and 305,984.82

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Solution

The fourth proportional to 547,702.18, 755,828.94 and 305,984.82 is: 422,259.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,702.18 : 755,828.94 = 305,984.82 : x
  2. Step 2: Convert to fraction form
    547,702.18/755,828.94 = 305,984.82/x
  3. Step 3: Cross multiply
    547,702.18x = 755,828.94 × 305,984.82
  4. Step 4: Simplify right side
    547,702.18x = 231,272,182,156.69
  5. Step 5: Solve for x
    x = 231,272,182,156.69/547,702.18
  6. Step 6: Final answer
    x = 422,259.01

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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.