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Finding the Fourth Proportional to 627,766.79, 941,508.21 and 178,477.70

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Solution

The fourth proportional to 627,766.79, 941,508.21 and 178,477.70 is: 267,676.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,766.79 : 941,508.21 = 178,477.70 : x
  2. Step 2: Convert to fraction form
    627,766.79/941,508.21 = 178,477.70/x
  3. Step 3: Cross multiply
    627,766.79x = 941,508.21 × 178,477.70
  4. Step 4: Simplify right side
    627,766.79x = 168,038,219,851.92
  5. Step 5: Solve for x
    x = 168,038,219,851.92/627,766.79
  6. Step 6: Final answer
    x = 267,676.19

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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.