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Finding the Fourth Proportional to 627,960.90, 866,608.84 and 359,740.74

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Solution

The fourth proportional to 627,960.90, 866,608.84 and 359,740.74 is: 496,455.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,960.90 : 866,608.84 = 359,740.74 : x
  2. Step 2: Convert to fraction form
    627,960.90/866,608.84 = 359,740.74/x
  3. Step 3: Cross multiply
    627,960.90x = 866,608.84 × 359,740.74
  4. Step 4: Simplify right side
    627,960.90x = 311,754,505,392.14
  5. Step 5: Solve for x
    x = 311,754,505,392.14/627,960.90
  6. Step 6: Final answer
    x = 496,455.28

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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.