Home / 929,280.12-1,282,418.12-521,469.44

Finding the Fourth Proportional to 929,280.12, 1,282,418.12 and 521,469.44

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Solution

The fourth proportional to 929,280.12, 1,282,418.12 and 521,469.44 is: 719,634.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,280.12 : 1,282,418.12 = 521,469.44 : x
  2. Step 2: Convert to fraction form
    929,280.12/1,282,418.12 = 521,469.44/x
  3. Step 3: Cross multiply
    929,280.12x = 1,282,418.12 × 521,469.44
  4. Step 4: Simplify right side
    929,280.12x = 668,741,858,882.25
  5. Step 5: Solve for x
    x = 668,741,858,882.25/929,280.12
  6. Step 6: Final answer
    x = 719,634.31

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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.