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Finding the Fourth Proportional to 504,229.81, 695,871.56 and 308,080.27

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Solution

The fourth proportional to 504,229.81, 695,871.56 and 308,080.27 is: 425,171.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,229.81 : 695,871.56 = 308,080.27 : x
  2. Step 2: Convert to fraction form
    504,229.81/695,871.56 = 308,080.27/x
  3. Step 3: Cross multiply
    504,229.81x = 695,871.56 × 308,080.27
  4. Step 4: Simplify right side
    504,229.81x = 214,384,294,810.04
  5. Step 5: Solve for x
    x = 214,384,294,810.04/504,229.81
  6. Step 6: Final answer
    x = 425,171.80

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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.