Home / 547,743.09-820,936.40-310,366.11

Finding the Fourth Proportional to 547,743.09, 820,936.40 and 310,366.11

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Solution

The fourth proportional to 547,743.09, 820,936.40 and 310,366.11 is: 465,164.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,743.09 : 820,936.40 = 310,366.11 : x
  2. Step 2: Convert to fraction form
    547,743.09/820,936.40 = 310,366.11/x
  3. Step 3: Cross multiply
    547,743.09x = 820,936.40 × 310,366.11
  4. Step 4: Simplify right side
    547,743.09x = 254,790,835,473.57
  5. Step 5: Solve for x
    x = 254,790,835,473.57/547,743.09
  6. Step 6: Final answer
    x = 465,164.86

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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.