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Finding the Fourth Proportional to 627,676.80, 866,266.56 and 373,025.76

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Solution

The fourth proportional to 627,676.80, 866,266.56 and 373,025.76 is: 514,818.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,676.80 : 866,266.56 = 373,025.76 : x
  2. Step 2: Convert to fraction form
    627,676.80/866,266.56 = 373,025.76/x
  3. Step 3: Cross multiply
    627,676.80x = 866,266.56 × 373,025.76
  4. Step 4: Simplify right side
    627,676.80x = 323,139,741,906.59
  5. Step 5: Solve for x
    x = 323,139,741,906.59/627,676.80
  6. Step 6: Final answer
    x = 514,818.68

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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.