Home / 685,672.37-1,029,171.95-330,936.11

Finding the Fourth Proportional to 685,672.37, 1,029,171.95 and 330,936.11

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Solution

The fourth proportional to 685,672.37, 1,029,171.95 and 330,936.11 is: 496,724.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,672.37 : 1,029,171.95 = 330,936.11 : x
  2. Step 2: Convert to fraction form
    685,672.37/1,029,171.95 = 330,936.11/x
  3. Step 3: Cross multiply
    685,672.37x = 1,029,171.95 × 330,936.11
  4. Step 4: Simplify right side
    685,672.37x = 340,590,163,813.37
  5. Step 5: Solve for x
    x = 340,590,163,813.37/685,672.37
  6. Step 6: Final answer
    x = 496,724.35

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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.