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Finding the Fourth Proportional to 627,723.35, 866,254.61 and 355,842.53

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Solution

The fourth proportional to 627,723.35, 866,254.61 and 355,842.53 is: 491,060.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,723.35 : 866,254.61 = 355,842.53 : x
  2. Step 2: Convert to fraction form
    627,723.35/866,254.61 = 355,842.53/x
  3. Step 3: Cross multiply
    627,723.35x = 866,254.61 × 355,842.53
  4. Step 4: Simplify right side
    627,723.35x = 308,250,230,267.35
  5. Step 5: Solve for x
    x = 308,250,230,267.35/627,723.35
  6. Step 6: Final answer
    x = 491,060.64

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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.