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Finding the Fourth Proportional to 627,907.80, 942,080.40 and 273,176.40

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Solution

The fourth proportional to 627,907.80, 942,080.40 and 273,176.40 is: 409,859.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,907.80 : 942,080.40 = 273,176.40 : x
  2. Step 2: Convert to fraction form
    627,907.80/942,080.40 = 273,176.40/x
  3. Step 3: Cross multiply
    627,907.80x = 942,080.40 × 273,176.40
  4. Step 4: Simplify right side
    627,907.80x = 257,354,132,182.56
  5. Step 5: Solve for x
    x = 257,354,132,182.56/627,907.80
  6. Step 6: Final answer
    x = 409,859.75

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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.