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Finding the Fourth Proportional to 544,674.40, 815,067.60 and 345,090.40

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Solution

The fourth proportional to 544,674.40, 815,067.60 and 345,090.40 is: 516,403.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,674.40 : 815,067.60 = 345,090.40 : x
  2. Step 2: Convert to fraction form
    544,674.40/815,067.60 = 345,090.40/x
  3. Step 3: Cross multiply
    544,674.40x = 815,067.60 × 345,090.40
  4. Step 4: Simplify right side
    544,674.40x = 281,272,004,111.04
  5. Step 5: Solve for x
    x = 281,272,004,111.04/544,674.40
  6. Step 6: Final answer
    x = 516,403.94

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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.