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Finding the Fourth Proportional to 554,729.80, 832,382.70 and 259,241.80

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Solution

The fourth proportional to 554,729.80, 832,382.70 and 259,241.80 is: 388,997.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,729.80 : 832,382.70 = 259,241.80 : x
  2. Step 2: Convert to fraction form
    554,729.80/832,382.70 = 259,241.80/x
  3. Step 3: Cross multiply
    554,729.80x = 832,382.70 × 259,241.80
  4. Step 4: Simplify right side
    554,729.80x = 215,788,389,436.86
  5. Step 5: Solve for x
    x = 215,788,389,436.86/554,729.80
  6. Step 6: Final answer
    x = 388,997.29

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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.