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Finding the Fourth Proportional to 559,634.90, 772,273.56 and 304,980.62

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Solution

The fourth proportional to 559,634.90, 772,273.56 and 304,980.62 is: 420,860.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,634.90 : 772,273.56 = 304,980.62 : x
  2. Step 2: Convert to fraction form
    559,634.90/772,273.56 = 304,980.62/x
  3. Step 3: Cross multiply
    559,634.90x = 772,273.56 × 304,980.62
  4. Step 4: Simplify right side
    559,634.90x = 235,528,469,138.41
  5. Step 5: Solve for x
    x = 235,528,469,138.41/559,634.90
  6. Step 6: Final answer
    x = 420,860.94

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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.