Home / 816,217.36-1,224,324.42-217,178.49

Finding the Fourth Proportional to 816,217.36, 1,224,324.42 and 217,178.49

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Solution

The fourth proportional to 816,217.36, 1,224,324.42 and 217,178.49 is: 325,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,217.36 : 1,224,324.42 = 217,178.49 : x
  2. Step 2: Convert to fraction form
    816,217.36/1,224,324.42 = 217,178.49/x
  3. Step 3: Cross multiply
    816,217.36x = 1,224,324.42 × 217,178.49
  4. Step 4: Simplify right side
    816,217.36x = 265,896,928,805.73
  5. Step 5: Solve for x
    x = 265,896,928,805.73/816,217.36
  6. Step 6: Final answer
    x = 325,767.30

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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.