Home / 823,506.60-1,234,676.70-317,872.20

Finding the Fourth Proportional to 823,506.60, 1,234,676.70 and 317,872.20

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Solution

The fourth proportional to 823,506.60, 1,234,676.70 and 317,872.20 is: 476,583.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,506.60 : 1,234,676.70 = 317,872.20 : x
  2. Step 2: Convert to fraction form
    823,506.60/1,234,676.70 = 317,872.20/x
  3. Step 3: Cross multiply
    823,506.60x = 1,234,676.70 × 317,872.20
  4. Step 4: Simplify right side
    823,506.60x = 392,469,398,917.74
  5. Step 5: Solve for x
    x = 392,469,398,917.74/823,506.60
  6. Step 6: Final answer
    x = 476,583.19

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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.