Home / 413,945.56-620,982.78-133,491.16

Finding the Fourth Proportional to 413,945.56, 620,982.78 and 133,491.16

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Solution

The fourth proportional to 413,945.56, 620,982.78 and 133,491.16 is: 200,257.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,945.56 : 620,982.78 = 133,491.16 : x
  2. Step 2: Convert to fraction form
    413,945.56/620,982.78 = 133,491.16/x
  3. Step 3: Cross multiply
    413,945.56x = 620,982.78 × 133,491.16
  4. Step 4: Simplify right side
    413,945.56x = 82,895,711,642.22
  5. Step 5: Solve for x
    x = 82,895,711,642.22/413,945.56
  6. Step 6: Final answer
    x = 200,257.52

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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.