Home / 767,640.38-1,151,460.56-269,004.38

Finding the Fourth Proportional to 767,640.38, 1,151,460.56 and 269,004.38

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Solution

The fourth proportional to 767,640.38, 1,151,460.56 and 269,004.38 is: 403,506.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,640.38 : 1,151,460.56 = 269,004.38 : x
  2. Step 2: Convert to fraction form
    767,640.38/1,151,460.56 = 269,004.38/x
  3. Step 3: Cross multiply
    767,640.38x = 1,151,460.56 × 269,004.38
  4. Step 4: Simplify right side
    767,640.38x = 309,747,928,952.46
  5. Step 5: Solve for x
    x = 309,747,928,952.46/767,640.38
  6. Step 6: Final answer
    x = 403,506.56

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Half scale
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Double scale
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Similar ratio
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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.