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Finding the Fourth Proportional to 627,782.60, 941,630.70 and 201,312.20

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Solution

The fourth proportional to 627,782.60, 941,630.70 and 201,312.20 is: 301,954.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,782.60 : 941,630.70 = 201,312.20 : x
  2. Step 2: Convert to fraction form
    627,782.60/941,630.70 = 201,312.20/x
  3. Step 3: Cross multiply
    627,782.60x = 941,630.70 × 201,312.20
  4. Step 4: Simplify right side
    627,782.60x = 189,561,747,804.54
  5. Step 5: Solve for x
    x = 189,561,747,804.54/627,782.60
  6. Step 6: Final answer
    x = 301,954.45

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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.