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Finding the Fourth Proportional to 627,675.80, 940,131.30 and 544,731.80

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Solution

The fourth proportional to 627,675.80, 940,131.30 and 544,731.80 is: 815,897.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,675.80 : 940,131.30 = 544,731.80 : x
  2. Step 2: Convert to fraction form
    627,675.80/940,131.30 = 544,731.80/x
  3. Step 3: Cross multiply
    627,675.80x = 940,131.30 × 544,731.80
  4. Step 4: Simplify right side
    627,675.80x = 512,119,415,285.34
  5. Step 5: Solve for x
    x = 512,119,415,285.34/627,675.80
  6. Step 6: Final answer
    x = 815,897.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.