Home / 901,222.17-1,243,684.78-493,324.12

Finding the Fourth Proportional to 901,222.17, 1,243,684.78 and 493,324.12

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Solution

The fourth proportional to 901,222.17, 1,243,684.78 and 493,324.12 is: 680,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,222.17 : 1,243,684.78 = 493,324.12 : x
  2. Step 2: Convert to fraction form
    901,222.17/1,243,684.78 = 493,324.12/x
  3. Step 3: Cross multiply
    901,222.17x = 1,243,684.78 × 493,324.12
  4. Step 4: Simplify right side
    901,222.17x = 613,539,702,747.14
  5. Step 5: Solve for x
    x = 613,539,702,747.14/901,222.17
  6. Step 6: Final answer
    x = 680,786.29

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Double scale
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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.