Home / 901,351.72-1,243,863.42-493,450.25

Finding the Fourth Proportional to 901,351.72, 1,243,863.42 and 493,450.25

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Solution

The fourth proportional to 901,351.72, 1,243,863.42 and 493,450.25 is: 680,960.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,351.72 : 1,243,863.42 = 493,450.25 : x
  2. Step 2: Convert to fraction form
    901,351.72/1,243,863.42 = 493,450.25/x
  3. Step 3: Cross multiply
    901,351.72x = 1,243,863.42 × 493,450.25
  4. Step 4: Simplify right side
    901,351.72x = 613,784,715,564.86
  5. Step 5: Solve for x
    x = 613,784,715,564.86/901,351.72
  6. Step 6: Final answer
    x = 680,960.28

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.