Home / 685,669.69-1,029,167.92-330,933.43

Finding the Fourth Proportional to 685,669.69, 1,029,167.92 and 330,933.43

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Solution

The fourth proportional to 685,669.69, 1,029,167.92 and 330,933.43 is: 496,720.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,669.69 : 1,029,167.92 = 330,933.43 : x
  2. Step 2: Convert to fraction form
    685,669.69/1,029,167.92 = 330,933.43/x
  3. Step 3: Cross multiply
    685,669.69x = 1,029,167.92 × 330,933.43
  4. Step 4: Simplify right side
    685,669.69x = 340,586,069,811.57
  5. Step 5: Solve for x
    x = 340,586,069,811.57/685,669.69
  6. Step 6: Final answer
    x = 496,720.32

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1.5x scale

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.