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Finding the Fourth Proportional to 627,783.40, 941,602.20 and 178,573.60

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Solution

The fourth proportional to 627,783.40, 941,602.20 and 178,573.60 is: 267,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,783.40 : 941,602.20 = 178,573.60 : x
  2. Step 2: Convert to fraction form
    627,783.40/941,602.20 = 178,573.60/x
  3. Step 3: Cross multiply
    627,783.40x = 941,602.20 × 178,573.60
  4. Step 4: Simplify right side
    627,783.40x = 168,145,294,621.92
  5. Step 5: Solve for x
    x = 168,145,294,621.92/627,783.40
  6. Step 6: Final answer
    x = 267,839.66

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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.