Home / 739,975-1,021,165.44-400,443.24

Finding the Fourth Proportional to 739,975, 1,021,165.44 and 400,443.24

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Solution

The fourth proportional to 739,975, 1,021,165.44 and 400,443.24 is: 552,611.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,975 : 1,021,165.44 = 400,443.24 : x
  2. Step 2: Convert to fraction form
    739,975/1,021,165.44 = 400,443.24/x
  3. Step 3: Cross multiply
    739,975x = 1,021,165.44 × 400,443.24
  4. Step 4: Simplify right side
    739,975x = 408,918,797,369.63
  5. Step 5: Solve for x
    x = 408,918,797,369.63/739,975
  6. Step 6: Final answer
    x = 552,611.64

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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.