Home / 677,584.61-1,015,021.79-407,563.64

Finding the Fourth Proportional to 677,584.61, 1,015,021.79 and 407,563.64

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Solution

The fourth proportional to 677,584.61, 1,015,021.79 and 407,563.64 is: 610,530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,584.61 : 1,015,021.79 = 407,563.64 : x
  2. Step 2: Convert to fraction form
    677,584.61/1,015,021.79 = 407,563.64/x
  3. Step 3: Cross multiply
    677,584.61x = 1,015,021.79 × 407,563.64
  4. Step 4: Simplify right side
    677,584.61x = 413,685,978,968.18
  5. Step 5: Solve for x
    x = 413,685,978,968.18/677,584.61
  6. Step 6: Final answer
    x = 610,530.37

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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.